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Groups > linux.kernel > #1270753
| From | "Wangnan (F)" <wangnan0@huawei.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH 12/13] perf test: Test BPF prologue |
| Date | 2015-11-17 02:40 +0100 |
| Message-ID | <qvDpv-6FC-15@gated-at.bofh.it> (permalink) |
| References | <qvrom-7n2-5@gated-at.bofh.it> <qvry2-7qr-13@gated-at.bofh.it> <qvDfQ-6Ck-17@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On 2015/11/17 9:29, Arnaldo Carvalho de Melo wrote: > Em Mon, Nov 16, 2015 at 12:10:14PM +0000, Wang Nan escreveu: >> This patch introduces a new BPF script to test BPF prologue. The new >> script probes at null_lseek, which is the function pointer when we try >> to lseek on '/dev/null'. >> >> null_lseek is chosen because it is a function pointer, so we don't need >> to consider inlining and LTO. >> >> By extracting file->f_mode, bpf-script-test-prologue.c should know whether >> the file is writable or readonly. According to llseek_loop() and >> bpf-script-test-prologue.c, one forth of total lseeks should be collected. > So I tentatively changed the section name key=val separator from '\n' to > ';', applied all the patches up to this one (will review the last one > tomorrow), and tested it, reproducing your results, for some reason that > SEC() wasn't working, have to check again, using it expanded, as in my > previous tests, works, I updated the comments to reflect the tests I > did, please take a look. > > I've pushed everything to my perf/ebpf branch, please let me know if > what is there is acceptable, then it will be up to Ingo to decide where > to put this, if in perf/urgent for this merge window, or in perf/core, > for the next one. > > Ah, to extract the output for these BPF sub-tests I had to use -v, i.e. > just: > > # perf test BPF > 37: Test BPF filter : Ok > # > > Ditto for the LLVM one. > > Doesn't tell us too much about all those nice sub-tests... > > How about: > > # perf test -v BPF > 37: Test BPF filter: > 37.1: test a : Ok > 37.2: test b : Ok > 37.3: Test BPF prologue generation : Ok > 37.4: Another... : Ok > 37: Test BPF filter : Ok > # > > Thanks! Thanks to your work. I'm checking them now. > - Arnaldo > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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[PATCH 00/13] perf tools: bpf: Improve BPF program ability Wang Nan <wangnan0@huawei.com> - 2015-11-16 13:50 +0100
[PATCH 03/13] perf tools: Allow BPF program attach to uprobe events Wang Nan <wangnan0@huawei.com> - 2015-11-16 13:50 +0100
Re: [PATCH 03/13] perf tools: Allow BPF program attach to uprobe events Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-11-16 15:20 +0100
[tip:perf/core] perf bpf: Allow BPF program attach to uprobe events tip-bot for Wang Nan <tipbot@zytor.com> - 2015-11-23 17:10 +0100
[PATCH 10/13] perf tools: Add prologue for BPF programs for fetching arguments Wang Nan <wangnan0@huawei.com> - 2015-11-16 13:50 +0100
[tip:perf/core] perf bpf: Add prologue for BPF programs for fetching arguments tip-bot for He Kuang <tipbot@zytor.com> - 2015-11-23 17:10 +0100
[PATCH 04/13] perf tools: Allow BPF program attach to modules Wang Nan <wangnan0@huawei.com> - 2015-11-16 13:50 +0100
[tip:perf/core] perf bpf: Allow attaching BPF programs to modules symbols tip-bot for Wang Nan <tipbot@zytor.com> - 2015-11-23 17:10 +0100
[PATCH 07/13] bpf tools: Load a program with different instances using preprocessor Wang Nan <wangnan0@huawei.com> - 2015-11-16 13:50 +0100
Re: [PATCH 07/13] bpf tools: Load a program with different instances using preprocessor Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-11-16 20:10 +0100
Re: [PATCH 07/13] bpf tools: Load a program with different instances using preprocessor "Wangnan (F)" <wangnan0@huawei.com> - 2015-11-17 05:00 +0100
[tip:perf/core] bpf tools: Load a program with different instances using preprocessor tip-bot for Wang Nan <tipbot@zytor.com> - 2015-11-23 17:10 +0100
[PATCH 13/13] perf tools: Use same BPF program if arguments are identical Wang Nan <wangnan0@huawei.com> - 2015-11-16 14:00 +0100
Re: [PATCH 13/13] perf tools: Use same BPF program if arguments are identical "Wangnan (F)" <wangnan0@huawei.com> - 2015-11-17 04:10 +0100
Re: [PATCH 13/13] perf tools: Use same BPF program if arguments are identical Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-11-17 14:20 +0100
[PATCH 12/13] perf test: Test BPF prologue Wang Nan <wangnan0@huawei.com> - 2015-11-16 14:00 +0100
Re: [PATCH 12/13] perf test: Test BPF prologue Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-11-17 02:30 +0100
Re: [PATCH 12/13] perf test: Test BPF prologue "Wangnan (F)" <wangnan0@huawei.com> - 2015-11-17 02:40 +0100
Re: [PATCH 12/13] perf test: Test BPF prologue "Wangnan (F)" <wangnan0@huawei.com> - 2015-11-17 05:40 +0100
Re: [PATCH 12/13] perf test: Test BPF prologue Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-11-17 13:30 +0100
[PATCH 0/5] perf tools: Improve BPF support Wang Nan <wangnan0@huawei.com> - 2015-11-17 09:40 +0100
[PATCH 5/5] perf test: Mute test cases if verbose == 0 Wang Nan <wangnan0@huawei.com> - 2015-11-17 09:40 +0100
Re: [PATCH 5/5] perf test: Mute test cases if verbose == 0 Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-11-17 14:20 +0100
[tip:perf/core] perf test: Mute test cases error messages if verbose == 0 tip-bot for Wang Nan <tipbot@zytor.com> - 2015-11-23 17:20 +0100
[PATCH 2/5] perf tools: Use same BPF program if arguments are identical Wang Nan <wangnan0@huawei.com> - 2015-11-17 09:40 +0100
[tip:perf/core] perf bpf: Use same BPF program if arguments are identical tip-bot for Wang Nan <tipbot@zytor.com> - 2015-11-23 17:10 +0100
[PATCH 4/5] perf test: Print result for each subtest for BPF Wang Nan <wangnan0@huawei.com> - 2015-11-17 09:40 +0100
[tip:perf/core] perf test: Print result for each BPF subtest tip-bot for Wang Nan <tipbot@zytor.com> - 2015-11-23 17:20 +0100
[PATCH 1/5] perf test: Fix 2 bugs in 'perf test BPF' Wang Nan <wangnan0@huawei.com> - 2015-11-17 09:40 +0100
Re: [PATCH 1/5] perf test: Fix 2 bugs in 'perf test BPF' Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-11-17 14:00 +0100
Re: [PATCH 1/5] perf test: Fix 2 bugs in 'perf test BPF' pi3orama <pi3orama@163.com> - 2015-11-17 14:10 +0100
Re: [PATCH 1/5] perf test: Fix 2 bugs in 'perf test BPF' Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-11-17 14:40 +0100
[tip:perf/core] perf test: Fix 'perf test BPF' when it fails to find a suitable vmlinux tip-bot for Wang Nan <tipbot@zytor.com> - 2015-11-23 17:10 +0100
[PATCH 3/5] perf test: Print result for each subtest for llvm Wang Nan <wangnan0@huawei.com> - 2015-11-17 09:40 +0100
Re: [PATCH 3/5] perf test: Print result for each subtest for llvm Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-11-17 14:10 +0100
[tip:perf/core] perf test: Print result for each LLVM subtest tip-bot for Wang Nan <tipbot@zytor.com> - 2015-11-23 17:20 +0100
Re: [PATCH 12/13] perf test: Test BPF prologue "Wangnan (F)" <wangnan0@huawei.com> - 2015-11-17 09:50 +0100
[PATCH] perf record: Support custom vmlinux path Wang Nan <wangnan0@huawei.com> - 2015-11-17 11:00 +0100
Re: [PATCH] perf record: Support custom vmlinux path Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-11-17 13:40 +0100
Re: [PATCH] perf record: Support custom vmlinux path Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-11-17 13:50 +0100
Re: [PATCH] perf record: Support custom vmlinux path pi3orama <pi3orama@163.com> - 2015-11-17 13:50 +0100
[PATCH 0/2] perf tools: Builtin options related improvements Wang Nan <wangnan0@huawei.com> - 2015-11-19 15:10 +0100
[PATCH 2/2] perf record: Support custom vmlinux path Wang Nan <wangnan0@huawei.com> - 2015-11-19 15:10 +0100
[PATCH 1/2] perf tools: Always give options even it not compiled Wang Nan <wangnan0@huawei.com> - 2015-11-19 15:10 +0100
RE: [PATCH 1/2] perf tools: Always give options even it not compiled 平松雅巳 / HIRAMATU，MASAMI <masami.hiramatsu.pt@hitachi.com> - 2015-11-20 12:00 +0100
Re: [PATCH 1/2] perf tools: Always give options even it not compiled "Wangnan (F)" <wangnan0@huawei.com> - 2015-11-26 09:10 +0100
Re: [PATCH 1/2] perf tools: Always give options even it not compiled "Wangnan (F)" <wangnan0@huawei.com> - 2015-11-26 10:10 +0100
[tip:perf/core] perf test: Test the BPF prologue adding infrastructure tip-bot for Wang Nan <tipbot@zytor.com> - 2015-11-23 17:10 +0100
[PATCH 06/13] perf tools: Allow BPF program config probing options Wang Nan <wangnan0@huawei.com> - 2015-11-16 14:00 +0100
[tip:perf/core] perf bpf: Allow BPF program config probing options tip-bot for Wang Nan <tipbot@zytor.com> - 2015-11-23 17:10 +0100
[PATCH 08/13] perf tools: Add BPF_PROLOGUE config options for further patches Wang Nan <wangnan0@huawei.com> - 2015-11-16 14:00 +0100
[tip:perf/core] perf bpf: Add BPF_PROLOGUE config options for further patches tip-bot for Wang Nan <tipbot@zytor.com> - 2015-11-23 17:10 +0100
[PATCH 11/13] perf tools: Generate prologue for BPF programs Wang Nan <wangnan0@huawei.com> - 2015-11-16 14:00 +0100
[tip:perf/core] perf bpf: Generate prologue for BPF programs tip-bot for Wang Nan <tipbot@zytor.com> - 2015-11-23 17:10 +0100
[PATCH 02/13] perf probe: Clear probe_trace_event when add_probe_trace_event() fails Wang Nan <wangnan0@huawei.com> - 2015-11-16 14:00 +0100
Re: [PATCH 00/13] perf tools: bpf: Improve BPF program ability Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-11-16 15:20 +0100
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