From patchwork Wed Mar 25 21:15:30 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Jerin Jacob Kollanukkaran X-Patchwork-Id: 67113 Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 5AA85A058B; Wed, 25 Mar 2020 22:15:51 +0100 (CET) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id E30C12C15; Wed, 25 Mar 2020 22:15:49 +0100 (CET) Received: from mx0b-0016f401.pphosted.com (mx0a-0016f401.pphosted.com [67.231.148.174]) by dpdk.org (Postfix) with ESMTP id 023B82BAE for ; Wed, 25 Mar 2020 22:15:47 +0100 (CET) Received: from pps.filterd (m0045849.ppops.net [127.0.0.1]) by mx0a-0016f401.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 02PLAWBC003226; Wed, 25 Mar 2020 14:15:47 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=marvell.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type : content-transfer-encoding; s=pfpt0818; bh=vsOCL4YrPpffClCyfeTrhNbeQQstZKcefpVxEFsPGtY=; b=Z658nsbu62Ikx2cCm4syrFQM8zaQN9gNrhzn2sPPA2gJPZINw9MVCWcVQkJUY/PQXMhs aN4iP28q3g5kg2i53RZZBk8lB6A0s6ZYtoNb36tkGHM4jOvh2GIPEJJ4gecoFxKtxO9i cvXM/U3dVNoIXH9Rd89BPHifvifU+i05RQkWWjXRohtmWcyEYmLKwha4CjVPjKlR19O2 T+yT46OU/r7HpNBxovAwFQRTOqDKPwNmN/3V4zUyIYpy0xIFQ6zaCT6eTf+f6QGygVh/ Ln7u5h1NkdpVb9Es3faqadA7ndV13lOIoslZqJYIQ/MMknbbEYO1efOtNpHRO1Ry6X6l 6g== Received: from sc-exch04.marvell.com ([199.233.58.184]) by mx0a-0016f401.pphosted.com with ESMTP id 2ywg9nteut-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Wed, 25 Mar 2020 14:15:46 -0700 Received: from SC-EXCH01.marvell.com (10.93.176.81) by SC-EXCH04.marvell.com (10.93.176.84) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 25 Mar 2020 14:15:45 -0700 Received: from maili.marvell.com (10.93.176.43) by SC-EXCH01.marvell.com (10.93.176.81) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Wed, 25 Mar 2020 14:15:44 -0700 Received: from jerin-lab.marvell.com (jerin-lab.marvell.com [10.28.34.14]) by maili.marvell.com (Postfix) with ESMTP id D32E73F7043; Wed, 25 Mar 2020 14:15:42 -0700 (PDT) From: To: CC: , , , , , , Jerin Jacob Date: Thu, 26 Mar 2020 02:45:30 +0530 Message-ID: <20200325211603.240288-1-jerinj@marvell.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200318190241.3150971-1-jerinj@marvell.com> References: <20200318190241.3150971-1-jerinj@marvell.com> MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138, 18.0.645 definitions=2020-03-25_11:2020-03-24, 2020-03-25 signatures=0 Subject: [dpdk-dev] [PATCH v2 00/32] DPDK Trace support X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" From: Jerin Jacob v2: Addressed the following review comments from Mattias Rönnblom: 1) Changed from: typedef uint64_t* rte_trace_t; to typedef uint64_t rte_trace_t; Initially thought to make the handle as struct rte_trace { uint64_t val; } but changed to uint64_t for the following reasons a) It is opaque to the application and it will fix the compile-time type check as well. b) The handle has an index that will point to an internal slow-path structure so no ABI change required in the future. c) RTE_TRACE_POINT_DEFINE need to expose trace object. So it is better to keep as uint64_t and avoid one more indirection for no use. 2) Changed: from: enum rte_trace_mode_e { to: enum rte_trace_mode { 3) removed [out] "found" param from rte_trace_pattern() and rte_trace_regexp() 4) Changed rte_trace_from_name to rte_trace_by_name 5) rte_trace_is_dp_enabled() return bool now 6) in __rte_trace_point_register() the argument fn change to register_fn 7) removed !! from rte_trace_is_enabled() 8) Remove uninitialized "rc warning" from rte_trace_pattern() and rte_trace_regexp() 9) fixup bool return type for trace_entry_compare() 10) fixup calloc casting in trace_mkdir() 11) check fclose() return in trace_meta_save() and trace_mem_save() 12) rte_trace_ctf_* macro cleanup 13) added release notes 14) fix build issues reported by CI http://mails.dpdk.org/archives/test-report/2020-March/121235.html This patch set contains ~~~~~~~~~~~~~~~~~~~~~~~~ # The native implementation of common trace format(CTF)[1] based tracer # Public API to create the trace points. # Add tracepoints to eal, ethdev, mempool, eventdev and cryptodev library for tracing support # A unit test case # Performance test case to measure the trace overhead. (See eal/trace: # add trace performance test cases, patch) # Programmers guide for Trace support(See doc: add trace library guide, # patch) # Tested OS: ~~~~~~~~~~~ - Linux - FreeBSD # Tested open source CTF trace viewers ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - Babeltrace - Tracecompass # Trace overhead comparison with LTTng ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ trace overhead data on x86:[2] # 236 cycles with LTTng(>100ns) # 18 cycles(7ns) with Native DPDK CTF emitter.(See eal/trace: add trace # performance test cases patch) trace overhead data on arm64: # 312 cycles to 1100 cycles with LTTng based on the class of arm64 # CPU. # 11 cycles to 13 cycles with Native DPDK CTF emitter based on the class of arm64 CPU. 18 cycles(on x86) vs 11 cycles(on arm64) is due to rdtsc() overhead in x86. It seems rdtsc takes around 15cycles in x86. Items that needs to be sort it out ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ # Makefile and meson.build are updated to allow experimental APIs. As multiple EXPERIMENTAL symbols, exported by trace library, are used in various drivers, lib, app and examples. So to fix compilation warning/error, Makefile and meson.build are updated for all required components to support EXPERIMENTAL APIs. It results same code changes at multiple components as well as increases source code line changes in patchset too. Suggestions are welcome to resolve this issue with lesser code changes. More details: ~~~~~~~~~~~~~ # The Native DPDK CTF trace support does not have any dependency on third-party library. The generated output file is compatible with LTTng as both are using CTF trace format. The performance gain comes from: 1) exploit dpdk worker thread usage model to avoid atomics and use per core variables 2) use hugepage, 3) avoid a lot function pointers in fast-path etc 4) avoid unaligned store for arm64 etc Features: ~~~~~~~~~ - APIs and Features are similar to rte_log dynamic framework API(expect log prints on stdout vs it dumps on trace file) - No specific limit on the events. A string-based event like rte_log for pattern matching - Dynamic enable/disable support. - Instructmention overhead is ~1 cycle. i.e cost of adding the code wth out using trace feature. - Timestamp support for all the events using DPDK rte_rtdsc - No dependency on another library. Clean room native implementation of CTF. Functional test case: a) echo "trace_autotest" | sudo ./build/app/test/dpdk-test -c 0x3 --trace-level=8 The above command emits the following trace events uint8_t i; rte_trace_lib_eal_generic_void(); rte_trace_lib_eal_generic_u64(0x10000000000000); rte_trace_lib_eal_generic_u32(0x10000000); rte_trace_lib_eal_generic_u16(0xffee); rte_trace_lib_eal_generic_u8(0xc); rte_trace_lib_eal_generic_i64(-1234); rte_trace_lib_eal_generic_i32(-1234567); rte_trace_lib_eal_generic_i16(12); rte_trace_lib_eal_generic_i8(-3); rte_trace_lib_eal_generic_string("my string"); rte_trace_lib_eal_generic_function(__func__); for (i = 0; i < 128; i++) rte_trace_lib_eal_generic_u8(i); Install babeltrace package in Linux and point the generated trace file to babel trace. By default trace file created under /dpdk-traces/time_stamp/ example: # babeltrace /root/dpdk-traces/rte-2020-02-15-PM-02-56-51 | more [13:27:36.138468807] (+?.?????????) lib.eal.generic.void: { cpu_id = 0, name = "dpdk-test" }, { } [13:27:36.138468851] (+0.000000044) lib.eal.generic.u64: { cpu_id = 0, name = "dpdk-test" }, { in = 4503599627370496 } [13:27:36.138468860] (+0.000000009) lib.eal.generic.u32: { cpu_id = 0, name = "dpdk-test" }, { in = 268435456 } [13:27:36.138468934] (+0.000000074) lib.eal.generic.u16: { cpu_id = 0, name = "dpdk-test" }, { in = 65518 } [13:27:36.138468949] (+0.000000015) lib.eal.generic.u8: { cpu_id = 0, name = "dpdk-test" }, { in = 12 } [13:27:36.138468956] (+0.000000007) lib.eal.generic.i64: { cpu_id = 0, name = "dpdk-test" }, { in = -1234 } [13:27:36.138468963] (+0.000000007) lib.eal.generic.i32: { cpu_id = 0, name = "dpdk-test" }, { in = -1234567 } [13:27:36.138469024] (+0.000000061) lib.eal.generic.i16: { cpu_id = 0, name = "dpdk-test" }, { in = 12 } [13:27:36.138469044] (+0.000000020) lib.eal.generic.i8: { cpu_id = 0, name = "dpdk-test" }, { in = -3 } [13:27:36.138469051] (+0.000000007) lib.eal.generic.string: { cpu_id = 0, name = "dpdk-test" }, { str = "my string" } [13:27:36.138469203] (+0.000000152) lib.eal.generic.func: { cpu_id = 0, name = "dpdk-test" }, { func = "test_trace_points" } [13:27:36.138469239] (+0.000000036) lib.eal.generic.u8: { cpu_id = 0, name = "dpdk-test" }, { in = 0 } [13:27:36.138469246] (+0.000000007) lib.eal.generic.u8: { cpu_id = 0, name = "dpdk-test" }, { in = 1 } [13:27:36.138469252] (+0.000000006) lib.eal.generic.u8: { cpu_id = 0, name = "dpdk-test" }, { in = 2 } [13:27:36.138469262] (+0.000000010) lib.eal.generic.u8: { cpu_id = 0, name = "dpdk-test" }, { in = 3 } [13:27:36.138469269] (+0.000000007) lib.eal.generic.u8: { cpu_id = 0, name = "dpdk-test" }, { in = 4 } [13:27:36.138469276] (+0.000000007) lib.eal.generic.u8: { cpu_id = 0, name = "dpdk-test" }, { in = 5 } # There is a GUI based trace viewer available in Windows, Linux and # Mac. It is called as tracecompass.(https://www.eclipse.org/tracecompass/) The example screenshot and Histogram of above DPDK trace using Tracecompass. https://github.com/jerinjacobk/share/blob/master/dpdk_trace.JPG File walk through: ~~~~~~~~~~~~~~~~~~ lib/librte_eal/common/include/rte_trace.h - Public API for Trace provider and Trace control lib/librte_eal/common/eal_common_trace.c - main trace implementation lib/librte_eal/common/eal_common_trace_ctf.c - CTF metadata spec implementation lib/librte_eal/common/eal_common_trace_utils.c - command line utils and filesystem operations. lib/librte_eal/common/eal_common_trace_points.c - trace points for EAL library lib/librte_eal/common/include/rte_trace_eal.h - EAL tracepoint public API. lib/librte_eal/common/eal_trace.h - Private trace header file. [1] https://diamon.org/ctf/ [2] The above test is ported to LTTng for finding the LTTng trace overhead. It available at https://github.com/jerinjacobk/lttng-overhead https://github.com/jerinjacobk/lttng-overhead/blob/master/README Jerin Jacob (21): eal: introduce API for getting thread name eal: define the public API for trace support eal/trace: implement trace register API eal/trace: implement trace operation APIs eal/trace: add internal trace init and fini interface eal/trace: get bootup timestamp for trace eal/trace: create CTF TDSL metadata in memory eal/trace: implement trace memory allocation eal/trace: implement debug dump function eal/trace: implement trace save eal/trace: implement registration payload eal/trace: implement provider payload eal/trace: hook internal trace APIs to Linux eal/trace: hook internal trace APIs to FreeBSD eal/trace: add generic tracepoints eal/trace: add alarm tracepoints eal/trace: add memory tracepoints eal/trace: add memzone tracepoints eal/trace: add thread tracepoints eal/trace: add interrupt tracepoints eal/trace: add trace performance test cases Sunil Kumar Kori (11): eal/trace: handle CTF keyword collision eal/trace: add trace level configuration parameter eal/trace: add trace dir configuration parameter eal/trace: add trace bufsize configuration parameter eal/trace: add trace mode configuration parameter eal/trace: add unit test cases ethdev: add tracepoints eventdev: add tracepoints cryptodev: add tracepoints mempool: add tracepoints doc: add trace library guide MAINTAINERS | 15 + app/pdump/Makefile | 1 + app/pdump/meson.build | 1 + app/proc-info/Makefile | 1 + app/proc-info/meson.build | 1 + app/test-acl/Makefile | 1 + app/test-acl/meson.build | 1 + app/test-cmdline/Makefile | 1 + app/test-cmdline/meson.build | 1 + app/test-eventdev/Makefile | 1 + app/test-eventdev/meson.build | 1 + app/test-pipeline/Makefile | 1 + app/test-pipeline/meson.build | 1 + app/test/Makefile | 4 +- app/test/meson.build | 3 + app/test/test_trace.c | 618 ++++++++++++++++++ app/test/test_trace.h | 52 ++ app/test/test_trace_perf.c | 179 +++++ 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| 584 +++++++++++++++++ lib/librte_eal/common/include/rte_trace_eal.h | 247 +++++++ .../common/include/rte_trace_provider.h | 137 ++++ .../common/include/rte_trace_register.h | 53 ++ lib/librte_eal/common/meson.build | 8 + lib/librte_eal/common/rte_malloc.c | 60 +- lib/librte_eal/freebsd/eal/Makefile | 4 + lib/librte_eal/freebsd/eal/eal.c | 10 + lib/librte_eal/freebsd/eal/eal_alarm.c | 3 + lib/librte_eal/freebsd/eal/eal_interrupts.c | 52 +- lib/librte_eal/freebsd/eal/eal_thread.c | 21 +- lib/librte_eal/linux/eal/Makefile | 4 + lib/librte_eal/linux/eal/eal.c | 9 + lib/librte_eal/linux/eal/eal_alarm.c | 4 + lib/librte_eal/linux/eal/eal_interrupts.c | 84 ++- lib/librte_eal/linux/eal/eal_thread.c | 27 +- lib/librte_eal/rte_eal_version.map | 61 ++ lib/librte_ethdev/Makefile | 3 + lib/librte_ethdev/ethdev_trace_points.c | 43 ++ lib/librte_ethdev/meson.build | 5 +- lib/librte_ethdev/rte_ethdev.c | 12 + lib/librte_ethdev/rte_ethdev.h | 5 + lib/librte_ethdev/rte_ethdev_version.map | 10 + lib/librte_ethdev/rte_trace_ethdev.h | 90 +++ lib/librte_ethdev/rte_trace_ethdev_fp.h | 40 ++ lib/librte_eventdev/Makefile | 3 + lib/librte_eventdev/eventdev_trace_points.c | 173 +++++ lib/librte_eventdev/meson.build | 3 + .../rte_event_crypto_adapter.c | 10 + .../rte_event_eth_rx_adapter.c | 11 + .../rte_event_eth_tx_adapter.c | 13 +- .../rte_event_eth_tx_adapter.h | 2 + lib/librte_eventdev/rte_event_timer_adapter.c | 8 +- lib/librte_eventdev/rte_event_timer_adapter.h | 8 + lib/librte_eventdev/rte_eventdev.c | 9 + lib/librte_eventdev/rte_eventdev.h | 5 +- lib/librte_eventdev/rte_eventdev_version.map | 42 ++ lib/librte_eventdev/rte_trace_eventdev.h | 278 ++++++++ lib/librte_eventdev/rte_trace_eventdev_fp.h | 75 +++ lib/librte_gro/Makefile | 1 + lib/librte_gro/meson.build | 1 + lib/librte_gso/Makefile | 1 + lib/librte_gso/meson.build | 1 + lib/librte_ip_frag/Makefile | 1 + lib/librte_ip_frag/meson.build | 1 + lib/librte_kni/Makefile | 1 + lib/librte_kni/meson.build | 1 + lib/librte_latencystats/Makefile | 1 + lib/librte_latencystats/meson.build | 1 + lib/librte_mempool/Makefile | 3 + lib/librte_mempool/mempool_trace_points.c | 108 +++ lib/librte_mempool/meson.build | 7 +- lib/librte_mempool/rte_mempool.c | 16 + lib/librte_mempool/rte_mempool.h | 13 + lib/librte_mempool/rte_mempool_ops.c | 7 + lib/librte_mempool/rte_mempool_version.map | 26 + lib/librte_mempool/rte_trace_mempool.h | 148 +++++ lib/librte_mempool/rte_trace_mempool_fp.h | 102 +++ lib/librte_port/Makefile | 1 + lib/librte_port/meson.build | 1 + lib/librte_reorder/Makefile | 1 + lib/librte_reorder/meson.build | 1 + lib/librte_sched/Makefile | 1 + lib/librte_sched/meson.build | 1 + lib/librte_security/Makefile | 1 + lib/librte_security/meson.build | 1 + lib/librte_table/Makefile | 1 + lib/librte_table/meson.build | 1 + 260 files changed, 6271 insertions(+), 82 deletions(-) create mode 100644 app/test/test_trace.c create mode 100644 app/test/test_trace.h create mode 100644 app/test/test_trace_perf.c create mode 100644 app/test/test_trace_register.c create mode 100644 doc/guides/prog_guide/trace_lib.rst create mode 100644 lib/librte_cryptodev/cryptodev_trace_points.c create mode 100644 lib/librte_cryptodev/rte_trace_cryptodev.h create mode 100644 lib/librte_cryptodev/rte_trace_cryptodev_fp.h create mode 100644 lib/librte_eal/common/eal_common_trace.c create mode 100644 lib/librte_eal/common/eal_common_trace_ctf.c create mode 100644 lib/librte_eal/common/eal_common_trace_points.c create mode 100644 lib/librte_eal/common/eal_common_trace_utils.c create mode 100644 lib/librte_eal/common/eal_trace.h create mode 100644 lib/librte_eal/common/include/rte_trace.h create mode 100644 lib/librte_eal/common/include/rte_trace_eal.h create mode 100644 lib/librte_eal/common/include/rte_trace_provider.h create mode 100644 lib/librte_eal/common/include/rte_trace_register.h create mode 100644 lib/librte_ethdev/ethdev_trace_points.c create mode 100644 lib/librte_ethdev/rte_trace_ethdev.h create mode 100644 lib/librte_ethdev/rte_trace_ethdev_fp.h create mode 100644 lib/librte_eventdev/eventdev_trace_points.c create mode 100644 lib/librte_eventdev/rte_trace_eventdev.h create mode 100644 lib/librte_eventdev/rte_trace_eventdev_fp.h create mode 100644 lib/librte_mempool/mempool_trace_points.c create mode 100644 lib/librte_mempool/rte_trace_mempool.h create mode 100644 lib/librte_mempool/rte_trace_mempool_fp.h