diff mbox series

[v4,6/9] autotest: remove autotest grouping

Message ID 1531833331-18148-7-git-send-email-reshma.pattan@intel.com (mailing list archive)
State Superseded, archived
Delegated to: Thomas Monjalon
Headers show
Series Make unit tests great again | expand

Checks

Context Check Description
ci/checkpatch success coding style OK
ci/Intel-compilation success Compilation OK

Commit Message

Pattan, Reshma July 17, 2018, 1:15 p.m. UTC
Previously, all autotests were grouped into (seemingly arbitrary)
groups. The goal was to run all tests in parallel (so that autotest
finishes faster), but we couldn't just do it willy-nilly because
DPDK couldn't allocate and free hugepages on-demand, so we had to
find autotest groupings that could work memory-wise and still be
fast enough to not hold up shorter tests. The inflexibility of
memory subsystem has now been fixed for 18.05, so grouping
autotests is no longer necessary.

Thus, this commit moves all autotests into two groups -
parallel(izable) autotests, and non-arallel(izable) autotests
(typically performance tests). Note that this particular commit
makes running autotests dog slow because while the tests are now
in a single group, the test function itself hasn't changed much,
so all autotests are now run one-by-one, starting and stopping
the DPDK test application.

Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
---
 test/test/autotest.py        |   7 +-
 test/test/autotest_data.py   | 749 +++++++++++++++++--------------------------
 test/test/autotest_runner.py | 271 ++++++----------
 3 files changed, 408 insertions(+), 619 deletions(-)
diff mbox series

Patch

diff --git a/test/test/autotest.py b/test/test/autotest.py
index 1cfd8cf22..ae27daef7 100644
--- a/test/test/autotest.py
+++ b/test/test/autotest.py
@@ -39,11 +39,8 @@  def usage():
 runner = autotest_runner.AutotestRunner(cmdline, target, test_blacklist,
                                         test_whitelist)
 
-for test_group in autotest_data.parallel_test_group_list:
-    runner.add_parallel_test_group(test_group)
-
-for test_group in autotest_data.non_parallel_test_group_list:
-    runner.add_non_parallel_test_group(test_group)
+runner.parallel_tests = autotest_data.parallel_test_list[:]
+runner.non_parallel_tests = autotest_data.non_parallel_test_list[:]
 
 num_fails = runner.run_all_tests()
 
diff --git a/test/test/autotest_data.py b/test/test/autotest_data.py
index aacfe0a66..c24e7bc25 100644
--- a/test/test/autotest_data.py
+++ b/test/test/autotest_data.py
@@ -3,465 +3,322 @@ 
 
 # Test data for autotests
 
-from glob import glob
 from autotest_test_funcs import *
 
-
-# quick and dirty function to find out number of sockets
-def num_sockets():
-    result = len(glob("/sys/devices/system/node/node*"))
-    if result == 0:
-        return 1
-    return result
-
-
-# Assign given number to each socket
-# e.g. 32 becomes 32,32 or 32,32,32,32
-def per_sockets(num):
-    return ",".join([str(num)] * num_sockets())
-
 # groups of tests that can be run in parallel
 # the grouping has been found largely empirically
-parallel_test_group_list = [
-    {
-        "Prefix":    "group_1",
-        "Memory":    per_sockets(8),
-        "Tests":
-        [
-            {
-                "Name":    "Cycles autotest",
-                "Command": "cycles_autotest",
-                "Func":    default_autotest,
-                "Report":  None,
-            },
-            {
-                "Name":    "Timer autotest",
-                "Command": "timer_autotest",
-                "Func":    timer_autotest,
-                "Report":   None,
-            },
-            {
-                "Name":    "Debug autotest",
-                "Command": "debug_autotest",
-                "Func":    default_autotest,
-                "Report":  None,
-            },
-            {
-                "Name":    "Errno autotest",
-                "Command": "errno_autotest",
-                "Func":    default_autotest,
-                "Report":  None,
-            },
-            {
-                "Name":    "Meter autotest",
-                "Command": "meter_autotest",
-                "Func":    default_autotest,
-                "Report":  None,
-            },
-            {
-                "Name":    "Common autotest",
-                "Command": "common_autotest",
-                "Func":    default_autotest,
-                "Report":  None,
-            },
-            {
-                "Name":    "Resource autotest",
-                "Command": "resource_autotest",
-                "Func":    default_autotest,
-                "Report":  None,
-            },
-        ]
-    },
-    {
-        "Prefix":    "group_2",
-        "Memory":    "16",
-        "Tests":
-        [
-            {
-                "Name":    "Memory autotest",
-                "Command": "memory_autotest",
-                "Func":    memory_autotest,
-                "Report":  None,
-            },
-            {
-                "Name":    "Read/write lock autotest",
-                "Command": "rwlock_autotest",
-                "Func":    rwlock_autotest,
-                "Report":  None,
-            },
-            {
-                "Name":    "Logs autotest",
-                "Command": "logs_autotest",
-                "Func":    logs_autotest,
-                "Report":  None,
-            },
-            {
-                "Name":    "CPU flags autotest",
-                "Command": "cpuflags_autotest",
-                "Func":    default_autotest,
-                "Report":  None,
-            },
-            {
-                "Name":    "Version autotest",
-                "Command": "version_autotest",
-                "Func":    default_autotest,
-                "Report":  None,
-            },
-            {
-                "Name":    "EAL filesystem autotest",
-                "Command": "eal_fs_autotest",
-                "Func":    default_autotest,
-                "Report":  None,
-            },
-            {
-                "Name":    "EAL flags autotest",
-                "Command": "eal_flags_autotest",
-                "Func":    default_autotest,
-                "Report":  None,
-            },
-            {
-                "Name":    "Hash autotest",
-                "Command": "hash_autotest",
-                "Func":    default_autotest,
-                "Report":  None,
-            },
-        ],
-    },
-    {
-        "Prefix":    "group_3",
-        "Memory":    per_sockets(512),
-        "Tests":
-        [
-            {
-                "Name":    "LPM autotest",
-                "Command": "lpm_autotest",
-                "Func":    default_autotest,
-                "Report":  None,
-            },
-            {
-                "Name":    "LPM6 autotest",
-                "Command": "lpm6_autotest",
-                "Func":    default_autotest,
-                "Report":  None,
-            },
-            {
-                "Name":    "Memcpy autotest",
-                "Command": "memcpy_autotest",
-                "Func":    default_autotest,
-                "Report":  None,
-            },
-            {
-                "Name":    "Memzone autotest",
-                "Command": "memzone_autotest",
-                "Func":    default_autotest,
-                "Report":  None,
-            },
-            {
-                "Name":    "String autotest",
-                "Command": "string_autotest",
-                "Func":    default_autotest,
-                "Report":  None,
-            },
-            {
-                "Name":    "Alarm autotest",
-                "Command": "alarm_autotest",
-                "Func":    default_autotest,
-                "Report":  None,
-            },
-        ]
-    },
-    {
-        "Prefix":    "group_4",
-        "Memory":    per_sockets(128),
-        "Tests":
-        [
-            {
-                "Name":    "PCI autotest",
-                "Command": "pci_autotest",
-                "Func":    default_autotest,
-                "Report":  None,
-            },
-            {
-                "Name":    "Malloc autotest",
-                "Command": "malloc_autotest",
-                "Func":    default_autotest,
-                "Report":  None,
-            },
-            {
-                "Name":    "Multi-process autotest",
-                "Command": "multiprocess_autotest",
-                "Func":    default_autotest,
-                "Report":  None,
-            },
-            {
-                "Name":    "Mbuf autotest",
-                "Command": "mbuf_autotest",
-                "Func":    default_autotest,
-                "Report":  None,
-            },
-            {
-                "Name":    "Per-lcore autotest",
-                "Command": "per_lcore_autotest",
-                "Func":    default_autotest,
-                "Report":  None,
-            },
-            {
-                "Name":    "Ring autotest",
-                "Command": "ring_autotest",
-                "Func":    default_autotest,
-                "Report":  None,
-            },
-        ]
-    },
-    {
-        "Prefix":    "group_5",
-        "Memory":    "32",
-        "Tests":
-        [
-            {
-                "Name":    "Spinlock autotest",
-                "Command": "spinlock_autotest",
-                "Func":    spinlock_autotest,
-                "Report":  None,
-            },
-            {
-                "Name":    "Byte order autotest",
-                "Command": "byteorder_autotest",
-                "Func":    default_autotest,
-                "Report":  None,
-            },
-            {
-                "Name":    "TAILQ autotest",
-                "Command": "tailq_autotest",
-                "Func":    default_autotest,
-                "Report":  None,
-            },
-            {
-                "Name":    "Command-line autotest",
-                "Command": "cmdline_autotest",
-                "Func":    default_autotest,
-                "Report":  None,
-            },
-            {
-                "Name":    "Interrupts autotest",
-                "Command": "interrupt_autotest",
-                "Func":    default_autotest,
-                "Report":  None,
-            },
-        ]
-    },
-    {
-        "Prefix":    "group_6",
-        "Memory":    per_sockets(512),
-        "Tests":
-        [
-            {
-                "Name":    "Function reentrancy autotest",
-                "Command": "func_reentrancy_autotest",
-                "Func":    default_autotest,
-                "Report":  None,
-            },
-            {
-                "Name":    "Mempool autotest",
-                "Command": "mempool_autotest",
-                "Func":    default_autotest,
-                "Report":  None,
-            },
-            {
-                "Name":    "Atomics autotest",
-                "Command": "atomic_autotest",
-                "Func":    default_autotest,
-                "Report":  None,
-            },
-            {
-                "Name":    "Prefetch autotest",
-                "Command": "prefetch_autotest",
-                "Func":    default_autotest,
-                "Report":  None,
-            },
-            {
-                "Name":    "Red autotest",
-                "Command": "red_autotest",
-                "Func":    default_autotest,
-                "Report":  None,
-            },
-        ]
-    },
-    {
-        "Prefix":    "group_7",
-        "Memory":    "64",
-        "Tests":
-        [
-            {
-                "Name":    "PMD ring autotest",
-                "Command": "ring_pmd_autotest",
-                "Func":    default_autotest,
-                "Report":  None,
-            },
-            {
-                "Name":    "Access list control autotest",
-                "Command": "acl_autotest",
-                "Func":    default_autotest,
-                "Report":  None,
-            },
-            {
-                "Name":    "Sched autotest",
-                "Command": "sched_autotest",
-                "Func":    default_autotest,
-                "Report":  None,
-            },
-        ]
+parallel_test_list = [
+    {
+        "Name":    "Cycles autotest",
+        "Command": "cycles_autotest",
+        "Func":    default_autotest,
+        "Report":  None,
+    },
+    {
+        "Name":    "Timer autotest",
+        "Command": "timer_autotest",
+        "Func":    timer_autotest,
+        "Report":   None,
+    },
+    {
+        "Name":    "Debug autotest",
+        "Command": "debug_autotest",
+        "Func":    default_autotest,
+        "Report":  None,
+    },
+    {
+        "Name":    "Errno autotest",
+        "Command": "errno_autotest",
+        "Func":    default_autotest,
+        "Report":  None,
+    },
+    {
+        "Name":    "Meter autotest",
+        "Command": "meter_autotest",
+        "Func":    default_autotest,
+        "Report":  None,
+    },
+    {
+        "Name":    "Common autotest",
+        "Command": "common_autotest",
+        "Func":    default_autotest,
+        "Report":  None,
+    },
+    {
+        "Name":    "Resource autotest",
+        "Command": "resource_autotest",
+        "Func":    default_autotest,
+        "Report":  None,
+    },
+    {
+        "Name":    "Memory autotest",
+        "Command": "memory_autotest",
+        "Func":    memory_autotest,
+        "Report":  None,
+    },
+    {
+        "Name":    "Read/write lock autotest",
+        "Command": "rwlock_autotest",
+        "Func":    rwlock_autotest,
+        "Report":  None,
+    },
+    {
+        "Name":    "Logs autotest",
+        "Command": "logs_autotest",
+        "Func":    logs_autotest,
+        "Report":  None,
+    },
+    {
+        "Name":    "CPU flags autotest",
+        "Command": "cpuflags_autotest",
+        "Func":    default_autotest,
+        "Report":  None,
+    },
+    {
+        "Name":    "Version autotest",
+        "Command": "version_autotest",
+        "Func":    default_autotest,
+        "Report":  None,
+    },
+    {
+        "Name":    "EAL filesystem autotest",
+        "Command": "eal_fs_autotest",
+        "Func":    default_autotest,
+        "Report":  None,
+    },
+    {
+        "Name":    "EAL flags autotest",
+        "Command": "eal_flags_autotest",
+        "Func":    default_autotest,
+        "Report":  None,
+    },
+    {
+        "Name":    "Hash autotest",
+        "Command": "hash_autotest",
+        "Func":    default_autotest,
+        "Report":  None,
+    },
+    {
+        "Name":    "LPM autotest",
+        "Command": "lpm_autotest",
+        "Func":    default_autotest,
+        "Report":  None,
+    },
+    {
+        "Name":    "LPM6 autotest",
+        "Command": "lpm6_autotest",
+        "Func":    default_autotest,
+        "Report":  None,
+    },
+    {
+        "Name":    "Memcpy autotest",
+        "Command": "memcpy_autotest",
+        "Func":    default_autotest,
+        "Report":  None,
+    },
+    {
+        "Name":    "Memzone autotest",
+        "Command": "memzone_autotest",
+        "Func":    default_autotest,
+        "Report":  None,
+    },
+    {
+        "Name":    "String autotest",
+        "Command": "string_autotest",
+        "Func":    default_autotest,
+        "Report":  None,
+    },
+    {
+        "Name":    "Alarm autotest",
+        "Command": "alarm_autotest",
+        "Func":    default_autotest,
+        "Report":  None,
+    },
+    {
+        "Name":    "PCI autotest",
+        "Command": "pci_autotest",
+        "Func":    default_autotest,
+        "Report":  None,
+    },
+    {
+        "Name":    "Malloc autotest",
+        "Command": "malloc_autotest",
+        "Func":    default_autotest,
+        "Report":  None,
+    },
+    {
+        "Name":    "Multi-process autotest",
+        "Command": "multiprocess_autotest",
+        "Func":    default_autotest,
+        "Report":  None,
+    },
+    {
+        "Name":    "Mbuf autotest",
+        "Command": "mbuf_autotest",
+        "Func":    default_autotest,
+        "Report":  None,
+    },
+    {
+        "Name":    "Per-lcore autotest",
+        "Command": "per_lcore_autotest",
+        "Func":    default_autotest,
+        "Report":  None,
+    },
+    {
+        "Name":    "Ring autotest",
+        "Command": "ring_autotest",
+        "Func":    default_autotest,
+        "Report":  None,
+    },
+    {
+        "Name":    "Spinlock autotest",
+        "Command": "spinlock_autotest",
+        "Func":    spinlock_autotest,
+        "Report":  None,
+    },
+    {
+        "Name":    "Byte order autotest",
+        "Command": "byteorder_autotest",
+        "Func":    default_autotest,
+        "Report":  None,
+    },
+    {
+        "Name":    "TAILQ autotest",
+        "Command": "tailq_autotest",
+        "Func":    default_autotest,
+        "Report":  None,
+    },
+    {
+        "Name":    "Command-line autotest",
+        "Command": "cmdline_autotest",
+        "Func":    default_autotest,
+        "Report":  None,
+    },
+    {
+        "Name":    "Interrupts autotest",
+        "Command": "interrupt_autotest",
+        "Func":    default_autotest,
+        "Report":  None,
+    },
+    {
+        "Name":    "Function reentrancy autotest",
+        "Command": "func_reentrancy_autotest",
+        "Func":    default_autotest,
+        "Report":  None,
+    },
+    {
+        "Name":    "Mempool autotest",
+        "Command": "mempool_autotest",
+        "Func":    default_autotest,
+        "Report":  None,
+    },
+    {
+        "Name":    "Atomics autotest",
+        "Command": "atomic_autotest",
+        "Func":    default_autotest,
+        "Report":  None,
+    },
+    {
+        "Name":    "Prefetch autotest",
+        "Command": "prefetch_autotest",
+        "Func":    default_autotest,
+        "Report":  None,
+    },
+    {
+        "Name":    "Red autotest",
+        "Command": "red_autotest",
+        "Func":    default_autotest,
+        "Report":  None,
+    },
+    {
+        "Name":    "PMD ring autotest",
+        "Command": "ring_pmd_autotest",
+        "Func":    default_autotest,
+        "Report":  None,
+    },
+    {
+        "Name":    "Access list control autotest",
+        "Command": "acl_autotest",
+        "Func":    default_autotest,
+        "Report":  None,
+    },
+    {
+        "Name":    "Sched autotest",
+        "Command": "sched_autotest",
+        "Func":    default_autotest,
+        "Report":  None,
     },
 ]
 
 # tests that should not be run when any other tests are running
-non_parallel_test_group_list = [
-
+non_parallel_test_list = [
     {
-        "Prefix":    "eventdev",
-        "Memory":    "512",
-        "Tests":
-        [
-            {
-                "Name":    "Eventdev common autotest",
-                "Command": "eventdev_common_autotest",
-                "Func":    default_autotest,
-                "Report":  None,
-            },
-        ]
-    },
-    {
-        "Prefix":    "eventdev_sw",
-        "Memory":    "512",
-        "Tests":
-        [
-            {
-                "Name":    "Eventdev sw autotest",
-                "Command": "eventdev_sw_autotest",
-                "Func":    default_autotest,
-                "Report":  None,
-            },
-        ]
-    },
-    {
-        "Prefix":    "kni",
-        "Memory":    "512",
-        "Tests":
-        [
-            {
-                "Name":    "KNI autotest",
-                "Command": "kni_autotest",
-                "Func":    default_autotest,
-                "Report":  None,
-            },
-        ]
-    },
-    {
-        "Prefix":    "mempool_perf",
-        "Memory":    per_sockets(256),
-        "Tests":
-        [
-            {
-                "Name":    "Mempool performance autotest",
-                "Command": "mempool_perf_autotest",
-                "Func":    default_autotest,
-                "Report":  None,
-            },
-        ]
-    },
-    {
-        "Prefix":    "memcpy_perf",
-        "Memory":    per_sockets(512),
-        "Tests":
-        [
-            {
-                "Name":    "Memcpy performance autotest",
-                "Command": "memcpy_perf_autotest",
-                "Func":    default_autotest,
-                "Report":  None,
-            },
-        ]
-    },
-    {
-        "Prefix":    "hash_perf",
-        "Memory":    per_sockets(512),
-        "Tests":
-        [
-            {
-                "Name":    "Hash performance autotest",
-                "Command": "hash_perf_autotest",
-                "Func":    default_autotest,
-                "Report":  None,
-            },
-        ]
-    },
-    {
-        "Prefix":      "power",
-        "Memory":      "16",
-        "Tests":
-        [
-            {
-                "Name":       "Power autotest",
-                "Command":    "power_autotest",
-                "Func":       default_autotest,
-                "Report":      None,
-            },
-        ]
-    },
-    {
-        "Prefix":      "power_acpi_cpufreq",
-        "Memory":      "16",
-        "Tests":
-        [
-            {
-                "Name":       "Power ACPI cpufreq autotest",
-                "Command":    "power_acpi_cpufreq_autotest",
-                "Func":       default_autotest,
-                "Report":     None,
-            },
-        ]
-    },
-    {
-        "Prefix":      "power_kvm_vm",
-        "Memory":      "16",
-        "Tests":
-        [
-            {
-                "Name":       "Power KVM VM  autotest",
-                "Command":    "power_kvm_vm_autotest",
-                "Func":       default_autotest,
-                "Report":     None,
-            },
-        ]
-    },
-    {
-        "Prefix":    "timer_perf",
-        "Memory":    per_sockets(512),
-        "Tests":
-        [
-            {
-                "Name":    "Timer performance autotest",
-                "Command": "timer_perf_autotest",
-                "Func":    default_autotest,
-                "Report":  None,
-            },
-        ]
+        "Name":    "Eventdev common autotest",
+        "Command": "eventdev_common_autotest",
+        "Func":    default_autotest,
+        "Report":  None,
+    },
+    {
+        "Name":    "Eventdev sw autotest",
+        "Command": "eventdev_sw_autotest",
+        "Func":    default_autotest,
+        "Report":  None,
+    },
+    {
+        "Name":    "KNI autotest",
+        "Command": "kni_autotest",
+        "Func":    default_autotest,
+        "Report":  None,
+    },
+    {
+        "Name":    "Mempool performance autotest",
+        "Command": "mempool_perf_autotest",
+        "Func":    default_autotest,
+        "Report":  None,
+    },
+    {
+        "Name":    "Memcpy performance autotest",
+        "Command": "memcpy_perf_autotest",
+        "Func":    default_autotest,
+        "Report":  None,
+    },
+    {
+        "Name":    "Hash performance autotest",
+        "Command": "hash_perf_autotest",
+        "Func":    default_autotest,
+        "Report":  None,
+    },
+    {
+        "Name":       "Power autotest",
+        "Command":    "power_autotest",
+        "Func":       default_autotest,
+        "Report":      None,
+    },
+    {
+        "Name":       "Power ACPI cpufreq autotest",
+        "Command":    "power_acpi_cpufreq_autotest",
+        "Func":       default_autotest,
+        "Report":     None,
+    },
+    {
+        "Name":       "Power KVM VM  autotest",
+        "Command":    "power_kvm_vm_autotest",
+        "Func":       default_autotest,
+        "Report":     None,
+    },
+    {
+        "Name":    "Timer performance autotest",
+        "Command": "timer_perf_autotest",
+        "Func":    default_autotest,
+        "Report":  None,
     },
-
     #
     # Please always make sure that ring_perf is the last test!
     #
     {
-        "Prefix":    "ring_perf",
-        "Memory":    per_sockets(512),
-        "Tests":
-        [
-            {
-                "Name":    "Ring performance autotest",
-                "Command": "ring_perf_autotest",
-                "Func":    default_autotest,
-                "Report":  None,
-            },
-        ]
+        "Name":    "Ring performance autotest",
+        "Command": "ring_perf_autotest",
+        "Func":    default_autotest,
+        "Report":  None,
     },
 ]
diff --git a/test/test/autotest_runner.py b/test/test/autotest_runner.py
index c98ec2a57..d6ae57e76 100644
--- a/test/test/autotest_runner.py
+++ b/test/test/autotest_runner.py
@@ -42,18 +42,16 @@  def wait_prompt(child):
 # quite a bit of effort to make it work).
 
 
-def run_test_group(cmdline, target, test_group):
-    results = []
-    child = None
+def run_test_group(cmdline, prefix, target, test):
     start_time = time.time()
-    startuplog = None
+
+    # prepare logging of init
+    startuplog = StringIO.StringIO()
 
     # run test app
     try:
-        # prepare logging of init
-        startuplog = StringIO.StringIO()
 
-        print("\n%s %s\n" % ("=" * 20, test_group["Prefix"]), file=startuplog)
+        print("\n%s %s\n" % ("=" * 20, prefix), file=startuplog)
         print("\ncmdline=%s" % cmdline, file=startuplog)
 
         child = pexpect.spawn(cmdline, logfile=startuplog)
@@ -62,88 +60,54 @@  def run_test_group(cmdline, target, test_group):
         if not wait_prompt(child):
             child.close()
 
-            results.append((-1,
-                            "Fail [No prompt]",
-                            "Start %s" % test_group["Prefix"],
-                            time.time() - start_time,
-                            startuplog.getvalue(),
-                            None))
-
-            # mark all tests as failed
-            for test in test_group["Tests"]:
-                results.append((-1, "Fail [No prompt]", test["Name"],
-                                time.time() - start_time, "", None))
-            # exit test
-            return results
+            return -1, "Fail [No prompt]", "Start %s" % prefix,\
+                   time.time() - start_time, startuplog.getvalue(), None
 
     except:
-        results.append((-1,
-                        "Fail [Can't run]",
-                        "Start %s" % test_group["Prefix"],
-                        time.time() - start_time,
-                        startuplog.getvalue(),
-                        None))
-
-        # mark all tests as failed
-        for t in test_group["Tests"]:
-            results.append((-1, "Fail [Can't run]", t["Name"],
-                            time.time() - start_time, "", None))
-        # exit test
-        return results
-
-    # startup was successful
-    results.append((0, "Success", "Start %s" % test_group["Prefix"],
-                    time.time() - start_time, startuplog.getvalue(), None))
-
-    # run all tests in test group
-    for test in test_group["Tests"]:
-
-        # create log buffer for each test
-        # in multiprocessing environment, the logging would be
-        # interleaved and will create a mess, hence the buffering
-        logfile = StringIO.StringIO()
-        child.logfile = logfile
-
-        result = ()
-
-        # make a note when the test started
-        start_time = time.time()
+        return -1, "Fail [Can't run]", "Start %s" % prefix,\
+               time.time() - start_time, startuplog.getvalue(), None
 
-        try:
-            # print test name to log buffer
-            print("\n%s %s\n" % ("-" * 20, test["Name"]), file=logfile)
+    # create log buffer for each test
+    # in multiprocessing environment, the logging would be
+    # interleaved and will create a mess, hence the buffering
+    logfile = StringIO.StringIO()
+    child.logfile = logfile
 
-            # run test function associated with the test
-            result = test["Func"](child, test["Command"])
+    # make a note when the test started
+    start_time = time.time()
 
-            # make a note when the test was finished
-            end_time = time.time()
+    try:
+        # print test name to log buffer
+        print("\n%s %s\n" % ("-" * 20, test["Name"]), file=logfile)
 
-            log = logfile.getvalue()
+        # run test function associated with the test
+        result = test["Func"](child, test["Command"])
 
-            # append test data to the result tuple
-            result += (test["Name"], end_time - start_time, log)
+        # make a note when the test was finished
+        end_time = time.time()
 
-            # call report function, if any defined, and supply it with
-            # target and complete log for test run
-            if test["Report"]:
-                report = test["Report"](target, log)
+        log = logfile.getvalue()
 
-                # append report to results tuple
-                result += (report,)
-            else:
-                # report is None
-                result += (None,)
-        except:
-            # make a note when the test crashed
-            end_time = time.time()
+        # append test data to the result tuple
+        result += (test["Name"], end_time - start_time, log)
+
+        # call report function, if any defined, and supply it with
+        # target and complete log for test run
+        if test["Report"]:
+            report = test["Report"](target, log)
+
+            # append report to results tuple
+            result += (report,)
+        else:
+            # report is None
+            result += (None,)
+    except:
+        # make a note when the test crashed
+        end_time = time.time()
 
-            # mark test as failed
-            result = (-1, "Fail [Crash]", test["Name"],
-                      end_time - start_time, logfile.getvalue(), None)
-        finally:
-            # append the results to the results list
-            results.append(result)
+        # mark test as failed
+        result = (-1, "Fail [Crash]", test["Name"],
+                  end_time - start_time, logfile.getvalue(), None)
 
     # regardless of whether test has crashed, try quitting it
     try:
@@ -155,7 +119,7 @@  def run_test_group(cmdline, target, test_group):
         pass
 
     # return test results
-    return results
+    return result
 
 
 # class representing an instance of autotests run
@@ -180,6 +144,8 @@  def __init__(self, cmdline, target, blacklist, whitelist):
         self.blacklist = blacklist
         self.whitelist = whitelist
         self.skipped = []
+        self.parallel_tests = []
+        self.non_parallel_tests = []
 
         # log file filename
         logfile = "%s.log" % target
@@ -193,80 +159,52 @@  def __init__(self, cmdline, target, blacklist, whitelist):
         self.csvwriter.writerow(["test_name", "test_result", "result_str"])
 
     # set up cmdline string
-    def __get_cmdline(self, test):
+    def __get_cmdline(self):
         cmdline = self.cmdline
 
-        # append memory limitations for each test
-        # otherwise tests won't run in parallel
-        if "i686" not in self.target:
-            cmdline += " --socket-mem=%s" % test["Memory"]
-        else:
-            # affinitize startup so that tests don't fail on i686
-            cmdline = "taskset 1 " + cmdline
-            cmdline += " -m " + str(sum(map(int, test["Memory"].split(","))))
-
-        # set group prefix for autotest group
-        # otherwise they won't run in parallel
-        cmdline += " --file-prefix=%s" % test["Prefix"]
+        # affinitize startup so that tests don't fail on i686
+        cmdline = "taskset 1 " + cmdline
 
         return cmdline
 
-    def add_parallel_test_group(self, test_group):
-        self.parallel_test_groups.append(test_group)
+    def __process_result(self, result):
 
-    def add_non_parallel_test_group(self, test_group):
-        self.non_parallel_test_groups.append(test_group)
+        # unpack result tuple
+        test_result, result_str, test_name, \
+            test_time, log, report = result
 
-    def __process_results(self, results):
-        # this iterates over individual test results
-        for i, result in enumerate(results):
+        # get total run time
+        cur_time = time.time()
+        total_time = int(cur_time - self.start)
 
-            # increase total number of tests that were run
-            # do not include "start" test
-            if i > 0:
-                self.n_tests += 1
+        # print results, test run time and total time since start
+        result = ("%s:" % test_name).ljust(30)
+        result += result_str.ljust(29)
+        result += "[%02dm %02ds]" % (test_time / 60, test_time % 60)
 
-            # unpack result tuple
-            test_result, result_str, test_name, \
-                test_time, log, report = result
+        # don't print out total time every line, it's the same anyway
+        print(result + "[%02dm %02ds]" % (total_time / 60, total_time % 60))
 
-            # get total run time
-            cur_time = time.time()
-            total_time = int(cur_time - self.start)
+        # if test failed and it wasn't a "start" test
+        if test_result < 0:
+            self.fails += 1
 
-            # print results, test run time and total time since start
-            result = ("%s:" % test_name).ljust(30)
-            result += result_str.ljust(29)
-            result += "[%02dm %02ds]" % (test_time / 60, test_time % 60)
+        # collect logs
+        self.log_buffers.append(log)
 
-            # don't print out total time every line, it's the same anyway
-            if i == len(results) - 1:
-                print(result +
-                      "[%02dm %02ds]" % (total_time / 60, total_time % 60))
+        # create report if it exists
+        if report:
+            try:
+                f = open("%s_%s_report.rst" %
+                         (self.target, test_name), "w")
+            except IOError:
+                print("Report for %s could not be created!" % test_name)
             else:
-                print(result)
-
-            # if test failed and it wasn't a "start" test
-            if test_result < 0 and not i == 0:
-                self.fails += 1
-
-            # collect logs
-            self.log_buffers.append(log)
-
-            # create report if it exists
-            if report:
-                try:
-                    f = open("%s_%s_report.rst" %
-                             (self.target, test_name), "w")
-                except IOError:
-                    print("Report for %s could not be created!" % test_name)
-                else:
-                    with f:
-                        f.write(report)
-
-            # write test result to CSV file
-            if i != 0:
-                self.csvwriter.writerow([test_name, test_result, result_str])
+                with f:
+                    f.write(report)
+
+        # write test result to CSV file
+        self.csvwriter.writerow([test_name, test_result, result_str])
 
     # this function checks individual test and decides if this test should be in
     # the group by comparing it against  whitelist/blacklist. it also checks if
@@ -303,22 +241,16 @@  def __filter_test(self, test):
 
         return True
 
-    def __filter_group(self, group):
-        group["Tests"] = list(filter(self.__filter_test, group["Tests"]))
-        return len(group["Tests"]) > 0
-
     # iterate over test groups and run tests associated with them
     def run_all_tests(self):
         # filter groups
-        # for each test group, check all tests against the filter, then remove
-        # all groups that don't have any tests
-        self.parallel_test_groups = list(
-            filter(self.__filter_group,
-                   self.parallel_test_groups)
+        self.parallel_tests = list(
+            filter(self.__filter_test,
+                   self.parallel_tests)
         )
-        self.non_parallel_test_groups = list(
-            filter(self.__filter_group,
-                   self.non_parallel_test_groups)
+        self.non_parallel_tests = list(
+            filter(self.__filter_test,
+                   self.non_parallel_tests)
         )
 
         # create a pool of worker threads
@@ -355,14 +287,16 @@  def run_all_tests(self):
             # make a note of tests start time
             self.start = time.time()
 
-            print("Parallel autotests:")
-            # assign worker threads to run test groups
-            for test_group in self.parallel_test_groups:
-                result = pool.apply_async(run_test_group,
-                                          [self.__get_cmdline(test_group),
-                                           self.target,
-                                           test_group])
-                results.append(result)
+            if len(self.parallel_tests) > 0:
+                print("Parallel autotests:")
+                # assign worker threads to run test groups
+                for test_group in self.parallel_tests:
+                    result = pool.apply_async(run_test_group,
+                                              [self.__get_cmdline(),
+                                               "",
+                                               self.target,
+                                               test_group])
+                    results.append(result)
 
             # iterate while we have group execution results to get
             while len(results) > 0:
@@ -377,18 +311,19 @@  def run_all_tests(self):
 
                     res = group_result.get()
 
-                    self.__process_results(res)
+                    self.__process_result(res)
 
                     # remove result from results list once we're done with it
                     results.remove(group_result)
 
-            print("Non-parallel autotests:")
-            # run non_parallel tests. they are run one by one, synchronously
-            for test_group in self.non_parallel_test_groups:
-                group_result = run_test_group(
-                    self.__get_cmdline(test_group), self.target, test_group)
+            if len(self.non_parallel_tests) > 0:
+                print("Non-parallel autotests:")
+                # run non_parallel tests. they are run one by one, synchronously
+                for test_group in self.non_parallel_tests:
+                    group_result = run_test_group(
+                        self.__get_cmdline(), "", self.target, test_group)
 
-                self.__process_results(group_result)
+                    self.__process_result(group_result)
 
             # get total run time
             cur_time = time.time()