glibc/sysdeps/nptl
Wilco Dijkstra c51c483d2b libio: Improve performance of IO locks
Improve performance of recursive IO locks by adding a fast path for
the single-threaded case. To reduce the number of memory accesses for
locking/unlocking, only increment the recursion counter if the lock
is already taken.

On Neoverse V1, a microbenchmark with many small freads improved by
2.9x. Multithreaded performance improved by 2%.

Reviewed-by: Cristian Rodríguez  <crrodriguez@opensuse.org>
2022-08-11 16:47:45 +01:00
..
bits Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
sys Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
_Fork.c arc4random: simplify design for better safety 2022-07-27 08:58:27 -03:00
aio_misc.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
dl-mutex.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
dl-thread_gscope_wait.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
dl-tls_init_tp.c nptl: Handle spurious EINTR when thread cancellation is disabled (BZ#29029) 2022-04-14 12:48:31 -03:00
dl-tunables.list Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
fork.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
futex-internal.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
gai_misc.h nptl: Remove uses of assert_perror 2022-08-03 11:42:49 +02:00
Implies Get rid of nptl/sysdeps/pthread/ subdirectory 2014-06-12 13:48:47 -07:00
internaltypes.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
jmp-unwind.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
libc_start_call_main.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
libc-lock.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
libc-lockP.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
lowlevellock-futex.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
lowlevellock.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
Makeconfig Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
Makefile Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
malloc-machine.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
proc_service.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
pthread_atfork_compat.h Consolidate pthread_atfork 2021-06-24 10:04:41 -03:00
pthread_early_init.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
pthread_mutex_backoff.h nptl: Add backoff mechanism to spinlock loop 2022-05-09 14:38:40 -07:00
pthread_mutex_conf.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
pthread-offsets.h nptl: update default pthread-offsets.h 2020-02-10 17:01:21 +01:00
pthread.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
pthreadP.h nptl: Add backoff mechanism to spinlock loop 2022-05-09 14:38:40 -07:00
setxid.h Replace __libc_multiple_threads with __libc_single_threaded 2022-07-05 10:14:47 -03:00
stdio-lock.h libio: Improve performance of IO locks 2022-08-11 16:47:45 +01:00
Subdirs Get rid of nptl/sysdeps/pthread/ subdirectory 2014-06-12 13:48:47 -07:00
tcb-access.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
tcb-offsets.h Get rid of nptl/sysdeps/pthread/ subdirectory 2014-06-12 13:48:47 -07:00
thread_db.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
thread_pointer.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
timer_routines.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
tst-mqueue8x.c Get rid of nptl/sysdeps/pthread/ subdirectory 2014-06-12 13:48:47 -07:00