Athira Rajeev c9c2a427dd perf bench: Fix futex bench to correct usage of affinity for machines with #CPUs > 1K ... The 'perf bench futex' testcase fails on systems with more than 1K CPUs. Testcase: perf bench futex all Failure snippet: <<>>Running futex/hash benchmark... perf: pthread_create: No such file or directory <<>> All the futex benchmarks (ie hash, lock-api, requeue, wake, wake-parallel), pthread_create is invoked in respective bench_futex_* function. Though the logs shows direct failure from pthread_create, strace logs showed that actual failure is from "sched_setaffinity" returning EINVAL (invalid argument). This happens because the default mask size in glibc is 1024. To overcome this 1024 CPUs mask size limitation of cpu_set_t, change the mask size using the CPU_*_S macros. Patch addresses this by fixing all the futex benchmarks to use CPU_ALLOC to allocate cpumask, CPU_ALLOC_SIZE for size, and CPU_SET_S to set the mask. Reported-by: Disha Goel <disgoel@linux.vnet.ibm.com> Reviewed-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Signed-off-by: Athira Jajeev <atrajeev@linux.vnet.ibm.com> Tested-by: Disha Goel <disgoel@linux.vnet.ibm.com> Acked-by: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Nageswara R Sastry <rnsastry@linux.ibm.com> Cc: linuxppc-dev@lists.ozlabs.org Link: https://lore.kernel.org/r/20220406175113.87881-2-atrajeev@linux.vnet.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>		2022-04-09 12:34:29 -03:00
..
bench.h	perf bench: Add benchmark for evlist open/close operations	2021-08-10 11:32:37 -03:00
Build	perf bench: Add benchmark for evlist open/close operations	2021-08-10 11:32:37 -03:00
epoll-ctl.c	perf bench: Fix NULL check against wrong variable	2022-03-12 10:49:13 -03:00
epoll-wait.c	perf cpumap: Migrate to libperf cpumap api	2022-01-22 17:08:42 -03:00
evlist-open-close.c	perf evlist: Rename cpus to user_requested_cpus	2022-04-01 16:19:35 -03:00
find-bit-bench.c	tools: rename bitmap_alloc() to bitmap_zalloc()	2021-09-08 11:50:27 -07:00
futex-hash.c	perf bench: Fix futex bench to correct usage of affinity for machines with #CPUs > 1K	2022-04-09 12:34:29 -03:00
futex-lock-pi.c	perf bench: Fix futex bench to correct usage of affinity for machines with #CPUs > 1K	2022-04-09 12:34:29 -03:00
futex-requeue.c	perf bench: Fix futex bench to correct usage of affinity for machines with #CPUs > 1K	2022-04-09 12:34:29 -03:00
futex-wake-parallel.c	perf bench: Fix futex bench to correct usage of affinity for machines with #CPUs > 1K	2022-04-09 12:34:29 -03:00
futex-wake.c	perf bench: Fix futex bench to correct usage of affinity for machines with #CPUs > 1K	2022-04-09 12:34:29 -03:00
futex.h	Revert "perf bench futex: Add support for 32-bit systems with 64-bit time_t"	2021-11-01 11:42:54 -03:00
inject-buildid.c	perf bench inject-buildid: Handle writen() errors	2021-08-30 10:06:37 -03:00
kallsyms-parse.c	perf bench: Add kallsyms parsing	2020-05-05 16:35:32 -03:00
mem-functions.c	perf bench mem: Always memset source before memcpy	2020-08-13 09:34:26 -03:00
mem-memcpy-arch.h
mem-memcpy-x86-64-asm-def.h
mem-memcpy-x86-64-asm.S	tools arch: Update arch/x86/lib/mem{cpy,set}_64.S copies used in 'perf bench mem memcpy'	2020-11-12 17:55:41 -03:00
mem-memset-arch.h
mem-memset-x86-64-asm-def.h
mem-memset-x86-64-asm.S	tools arch: Update arch/x86/lib/mem{cpy,set}_64.S copies used in 'perf bench mem memcpy'	2020-11-12 17:55:41 -03:00
numa.c	perf tools: Fix various typos in comments	2021-03-23 17:13:43 -03:00
sched-messaging.c	Revert "perf bench: Fix two memory leaks detected with ASan"	2021-12-06 21:57:52 -03:00
sched-pipe.c	perf tools: Cast (struct timeval).tv_sec when printing	2021-03-06 16:54:24 -03:00
synthesize.c	perf tools: Allow controlling synthesizing PERF_RECORD_ metadata events during record	2021-09-17 08:44:19 -03:00
syscall.c	perf tools: Cast (struct timeval).tv_sec when printing	2021-03-06 16:54:24 -03:00