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th>FilesLines 2016-08-23perf bench numa: Use NSEC_PER_U?SECArnaldo Carvalho de Melo1-26/+27 Following kernel practices, using linux/time64.h Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-7vnv15263y50qku76p4w5xk6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> 2016-07-12perf bench: Add missing pthread.h include for CPU_*() macrosArnaldo Carvalho de Melo1-1/+3 Cc: David Ahern <dsahern@gmail.com> Cc: Davidlohr Bueso <dbueso@suse.de> Cc: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-48qbfv7tqs8n8ey74lbyfjtq@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> 2016-03-21perf bench numa: Fix assertion for nodes bitfieldJakub Jelen1-1/+1 Comparing bits and bytes in numa benchmark assertion I hit the issue on two socket Power8 machine presenting its numa nodes as 0,1,16,17 (according to numactl). Therefore I got error (and hang of parent process): perf: bench/numa.c:296: bind_to_memnode: Assertion `!(g->p.nr_nodes > (int)sizeof(nodemask))' failed. This is obviously false positive. We can fit all the 18 nodes into bitfield of 8 bytes (long on 64b architecture). Signed-off-by: Jakub Jelen <jakuje@gmail.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jakub Jelen <jjelen@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: trivial@kernel.org Link: http://lkml.kernel.org/r/1458388687-24421-1-git-send-email-jakuje@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> 2015-12-17perf subcmd: Create subcmd libraryJosh Poimboeuf1-1/+1 Move the subcommand-related files from perf to a new library named libsubcmd.a. Since we're moving files anyway, go ahead and rename 'exec_cmd.*' to 'exec-cmd.*' to be consistent with the naming of all the other files. Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/c0a838d4c878ab17fee50998811612b2281355c1.1450193761.git.jpoimboe@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> 2015-10-19perf bench: Harmonize all the -l/--nr_loops optionsIngo Molnar1-2/+2 We have three benchmarking subsystems that specify some sort of 'number of loops' parameter - but all of them do it inconsistently: numa: -l/--nr_loops sched messaging: -l/--loops mem memset/memcpy: -i/--iterations Harmonize them to -l/--nr_loops by picking the numa variant - which is also the most likely one to have existing scripting which we don't want to break. Plus improve the parameter help texts to indicate the default value for the nr_loops variable to keep users from guessing ... Also propagate the naming to internal variables. Signed-off-by: Ingo Molnar <mingo@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1445241870-24854-13-git-send-email-mingo@kernel.org [ Let the harmonisation reach the perf-bench man page as well ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> 2015-05-18perf bench numa: Share sched_getcpu() __weak def with cloexec.cArnaldo Carvalho de Melo1-0/+1 We really should move the sched_getcpu() to some more suitable place, but this one-liner fixes this build problem on ancient distros like RHEL5. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Cc: Vinson Lee <vlee@twitter.com> Link: http://lkml.kernel.org/n/tip-5yqg4p11f9uii6yremz3r35v@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> 2015-05-11Merge branch 'perf/urgent' into perf/core, to resolve conflictsIngo Molnar1-2/+10 Conflicts: tools/perf/builtin-kmem.c Signed-off-by: Ingo Molnar <mingo@kernel.org> 2015-05-04perf bench numa: Show more stats of particular threads in verbose modePetr Holasek1-1/+31 In verbose mode perf bench numa shows also GB/s speed, system and user cpu time for each particular thread. Using of getrusage() can provide much more per process or per thread stats in future. Signed-off-by: Petr Holasek <pholasek@redhat.com> Reviewed-by: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/1429198699-25039-3-git-send-email-pholasek@redhat.com [ Rename 'usage' variable to not shadow util.h's usage() ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> 2015-04-27perf bench numa: Fix immediate meeting of convergence conditionPetr Holasek1-0/+8 This patch fixes the race in the beginning of benchmark run when some threads hasn't got assigned curr_cpu yet so they don't occur in nodes-of-process stats and benchmark concludes that all remaining threads are converged already. The race can be reproduced with small amount of threads and some bigger amount of shared process memory, e.g. one process, two threads and 5GB of process memory. Signed-off-by: Petr Holasek <pholasek@redhat.com> Reviewed-by: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/1429198699-25039-4-git-send-email-pholasek@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> 2015-04-27perf bench numa: Fixes of --quiet argumentPetr Holasek1-2/+2 Corrected description and fixed function of --quiet argument. Signed-off-by: Petr Holasek <pholasek@redhat.com> Reviewed-by: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/1429198699-25039-2-git-send-email-pholasek@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> 2014-04-14Merge branch 'perf-core-for-mingo' into perf/urgentIngo Molnar1-0/+4 Conflicts: tools/perf/bench/numa.c Pull perf fixes from Jiri Olsa. Signed-off-by: Ingo Molnar <mingo@kernel.org> 2014-04-14perf bench: Set more defaults in the 'numa' suiteRamkumar Ramachandra1-0/+4 Currently, $ perf bench numa mem errors out with usage information. To make this more user-friendly, let us provide a minimum set of default values required for a test run. As an added bonus, $ perf bench all now goes all the way to completion. Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/1395964219-22173-2-git-send-email-artagnon@gmail.com Signed-off-by: Jiri Olsa <jolsa@redhat.com> 2014-03-14perf bench numa: Make no args mean 'run all tests'Arnaldo Carvalho de Melo1-0/+1 If we call just: perf bench numa mem it will present the same output as: perf bench numa mem -h i.e. ask for instructions about what to run. While that is kinda ok, using 'run all tests' as the default, i.e. making 'no parms' be equivalent to: perf bench numa mem -a Will allow: perf bench numa all to actually do what is asked: i.e. run all the 'bench' tests, instead of responding to that by asking what to do. That, in turn, allows: perf bench all to actually complete, for the same reasons. And after that, the tests that come after that, and that at some point hit a NULL deref, will run, allowing me to reproduce a recently reported problem. That when you have the needed numa libraries, which wasn't the case for the reporter, making me a bit confused after trying to reproduce his report. So make no parms mean -a. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Patrick Palka <patrick@parcs.ath.cx> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-x7h0ghx4pef4n0brywg21krk@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> 2013-10-21perf tools: Fix bench/numa.c for 32-bit buildAdrian Hunter1-2/+2 bench/numa.c: In function 'worker_thread': bench/numa.c:1123:20: error: comparison between signed and unsigned integer expressions [-Werror=sign-compare] bench/numa.c:1171:6: error: format '%lx' expects argument of type 'long unsigned int', but argument 5 has type 'u64' [-Werror=format] cc1: all warnings being treated as errors Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1382099356-4918-13-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> 2013-10-11perf bench: Fix failing assertions in numa benchPetr Holasek1-13/+21 Patch adds more subtle handling of -C and -N parameters in parse_{cpu,node}_setup_list() functions when there isn't enough NUMA nodes or CPUs present. Instead of assertion and terminating benchmark, partial test is skipped with error message and perf will continue to the next one. Fixed problem can be easily reproduced on machine with only one NUMA node: # Running numa/mem benchmark... # Running main, "perf bench numa mem -a" ... # Running RAM-bw-remote, "perf bench numa mem -p 1 -t 1 -P 1024 -C 0 -M 1 -s perf: bench/numa.c:622: parse_setup_node_list: Assertion `!(bind_node_0 < 0 || bind_node_0 >= g->p.nr_nodes)' failed. Aborted Signed-off-by: Petr Holasek <pholasek@redhat.com> Acked-by: Ingo Molnar <mingo@kernel.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Petr Benas <pbenas@redhat.com> Link: http://lkml.kernel.org/r/1380821325-4017-1-git-send-email-pholasek@redhat.com Signed-off-by: Petr Benas <pbenas@redhat.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> 2013-01-30perf: Add 'perf bench numa mem' NUMA performance measurement suiteIngo Molnar1-0/+1731 Add a suite of NUMA performance benchmarks. The goal was simulate the behavior and access patterns of real NUMA workloads, via a wide range of parameters, so this tool goes well beyond simple bzero() measurements that most NUMA micro-benchmarks use: - It processes the data and creates a chain of data dependencies, like a real workload would. Neither the compiler, nor the kernel (via KSM and other optimizations) nor the CPU can eliminate parts of the workload. - It randomizes the initial state and also randomizes the target addresses of the processing - it's not a simple forward scan of addresses. - It provides flexible options to set process, thread and memory relationship information: -G sets "global" memory shared between all test processes, -P sets "process" memory shared by all threads of a process and -T sets "thread" private memory. - There's a NUMA convergence monitoring and convergence latency measurement option via -c and -m. - Micro-sleeps and synchronization can be injected to provoke lock contention and scheduling, via the -u and -S options. This simulates IO and contention. - The -x option instructs the workload to 'perturb' itself artificially every N seconds, by moving to the first and last CPU of the system periodically. This way the stability of convergence equilibrium and the number of steps taken for the scheduler to reach equilibrium again can be measured. - The amount of work can be specified via the -l loop count, and/or via a -s seconds-timeout value. - CPU and node memory binding options, to test hard binding scenarios. THP can be turned on and off via madvise() calls. - Live reporting of convergence progress in an 'at glance' output format. Printing of convergence and deconvergence events. The 'perf bench numa mem -a' option will start an array of about 30 individual tests that will each output such measurements: # Running 5x5-bw-thread, "perf bench numa mem -p 5 -t 5 -P 512 -s 20 -zZ0q --thp 1" 5x5-bw-thread, 20.276, secs, runtime-max/thread 5x5-bw-thread, 20.004, secs, runtime-min/thread 5x5-bw-thread, 20.155, secs, runtime-avg/thread 5x5-bw-thread, 0.671, %, spread-runtime/thread 5x5-bw-thread, 21.153, GB, data/thread 5x5-bw-thread, 528.818, GB, data-total 5x5-bw-thread, 0.959, nsecs, runtime/byte/thread 5x5-bw-thread, 1.043, GB/sec, thread-speed 5x5-bw-thread, 26.081, GB/sec, total-speed See the help text and the code for more details. Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Rik van Riel <riel@redhat.com> Cc: Mel Gorman <mgorman@suse.de> Cc: Hugh Dickins <hughd@google.com> Signed-off-by: Ingo Molnar <mingo@kernel.org>