d/freebsd-nq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
535eb30962
freebsd-nq/sys/kern
History
John Baldwin 535eb30962 Add a new kernel option MUTEX_WAKE_ALL that changes the mutex unlock code 
to awaken all waiters when a contested mutex is released instead of just
the highest priority waiter.  If the various threads are awakened in
sequence then each thread may acquire and release the lock in question
without contention resulting in fewer expensive unlock and lock
operations.  This old behavior of waking just the highest priority is
still used if this option is specified.  Making the algorithm conditional
on a kernel option will allows us to benchmark both cases later and
determine which one should be used by default.

Requested by:	tanimura-san
2004-04-06 19:12:24 +00:00
..
bus_if.m Introduce BUS_CONFIG_INTR(). The method allows devices to tell parents 2003-09-10 21:37:10 +00:00
clock_if.m
device_if.m
genassym.sh
imgact_aout.c Locking for the per-process resource limits structure. 2004-02-04 21:52:57 +00:00
imgact_elf32.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
imgact_elf64.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
imgact_elf.c Create NT_PRSTATUS and NT_FPREGSET notes for each and every thread 2004-04-03 20:25:41 +00:00
imgact_gzip.c Locking for the per-process resource limits structure. 2004-02-04 21:52:57 +00:00
imgact_shell.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
inflate.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
init_main.c Loudly announce WITNESS and DIAGNOSTIC options and warn about reduced 2004-02-29 16:56:54 +00:00
init_sysent.c Regen. 2004-04-05 10:17:23 +00:00
kern_acct.c Fixed some style bugs (mainly misplaced comments, and totally disordered 2004-03-04 09:47:09 +00:00
kern_acl.c Update my personal copyrights and NETA copyrights in the kernel 2004-02-22 00:33:12 +00:00
kern_alq.c Allow MAC policies to block/revoke kern_alq write access to a file. 2003-10-25 16:10:41 +00:00
kern_clock.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
kern_condvar.c - Remove old sleep queues. 2004-03-12 19:06:18 +00:00
kern_conf.c Correctly account for extra bits in unit numbers when looking for 2004-03-11 14:11:02 +00:00
kern_context.c Change the clear_ret argument of get_mcontext() to be a flags argument. 2003-11-09 20:31:04 +00:00
kern_descrip.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
kern_environment.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
kern_event.c Make sure to wake up any select waiters when closing a kqueue (also, not 2004-02-20 04:00:48 +00:00
kern_exec.c Remove sysctl kern.ps_argsopen, it is not very useful, one should use 2004-04-01 00:10:45 +00:00
kern_exit.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
kern_fork.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
kern_idle.c Always set a process' state to normal when it is fully constructed in 2004-02-05 21:01:37 +00:00
kern_intr.c kthread_exit() no longer requires Giant, so don't force callers to acquire 2004-03-05 22:42:17 +00:00
kern_jail.c Remove sysctl security.jail.list_allowed. 2004-03-15 12:10:34 +00:00
kern_kse.c Assign thread IDs to kernel threads. The purpose of the thread ID (tid) 2004-04-03 15:59:13 +00:00
kern_kthread.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
kern_ktr.c Update the license on this file to be a bit more sane. 2003-09-10 01:09:32 +00:00
kern_ktrace.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
kern_linker.c Split the mlock() kernel code into two parts, mlock(), which unpacks 2004-02-26 00:27:04 +00:00
kern_lock.c Add pid to the info printed in lockmgr_printinfo. This makes VFS 2004-01-06 04:34:13 +00:00
kern_lockf.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
kern_mac.c Update my personal copyrights and NETA copyrights in the kernel 2004-02-22 00:33:12 +00:00
kern_malloc.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
kern_mib.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
kern_module.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
kern_mtxpool.c Rearrange the SYSINIT order to call lockmgr_init() earlier so that 2003-07-16 01:00:39 +00:00
kern_mutex.c Add a new kernel option MUTEX_WAKE_ALL that changes the mutex unlock code 2004-04-06 19:12:24 +00:00
kern_ntptime.c Annual NTP kernel code spring-cleaning: 2004-03-14 15:23:05 +00:00
kern_physio.c Send B_PHYS out to pasture, it no longer serves any function. 2003-11-15 09:28:09 +00:00
kern_poll.c - Add a flags parameter to mi_switch. The value of flags may be SW_VOL or 2004-01-25 03:54:52 +00:00
kern_proc.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
kern_prot.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
kern_resource.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
kern_sema.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
kern_shutdown.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
kern_sig.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
kern_subr.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
kern_switch.c - style fixes to the critical_exit() KASSERT(). 2004-02-02 08:13:27 +00:00
kern_sx.c Fix _sx_assert() to panic() rather than printf() when an assertion fails 2004-02-27 16:13:44 +00:00
kern_synch.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
kern_syscalls.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
kern_sysctl.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
kern_tc.c Just because the timecounter reads the same value on two samples 2004-03-04 14:14:23 +00:00
kern_thr.c Assign thread IDs to kernel threads. The purpose of the thread ID (tid) 2004-04-03 15:59:13 +00:00
kern_thread.c Assign thread IDs to kernel threads. The purpose of the thread ID (tid) 2004-04-03 15:59:13 +00:00
kern_time.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
kern_timeout.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
kern_umtx.c Use the proc lock to sleep on a libthr umtx. 2004-03-27 14:32:03 +00:00
kern_uuid.c Fix generation of random multicast MAC address. 2004-01-22 13:34:11 +00:00
kern_xxx.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
ksched.c sched_setscheduler: Return EINVAL when a invalid policy is specified, 2003-09-13 18:46:24 +00:00
link_elf_obj.c Add the mlockall() and munlockall() system calls. 2003-08-11 07:14:08 +00:00
link_elf.c Add the mlockall() and munlockall() system calls. 2003-08-11 07:14:08 +00:00
linker_if.m The method link_preload_finish is not static. 2003-09-20 17:39:32 +00:00
Make.tags.inc Finish driving a stake through the heart of netns and the associated 2003-03-05 19:24:24 +00:00
Makefile Finish driving a stake through the heart of netns and the associated 2003-03-05 19:24:24 +00:00
makesyscalls.sh Remove the namespace column from the syscalls tables. We don't actually 2003-12-23 03:50:43 +00:00
md4c.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
md5c.c Revert stuff which accidentally ended up in the previous commit. 2003-07-22 10:36:36 +00:00
p1003_1b.c Use __FBSDID(). 2003-06-11 06:34:30 +00:00
posix4_mib.c Use __FBSDID(). 2003-06-11 06:34:30 +00:00
sched_4bsd.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
sched_ule.c - Use the proper constant in sched_interact_update(). Previously, 2004-04-04 19:12:56 +00:00
subr_acl_posix1e.c Update my personal copyrights and NETA copyrights in the kernel 2004-02-22 00:33:12 +00:00
subr_autoconf.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
subr_blist.c Expand inline the relevant parts of src/COPYRIGHT for Matt Dillon's 2003-08-12 23:24:05 +00:00
subr_bus.c Don't print out 'GIANT-LOCKED' for INTR_FAST drivers. 2004-04-01 07:18:42 +00:00
subr_clist.c Revert stuff which accidentally ended up in the previous commit. 2003-07-22 10:36:36 +00:00
subr_clock.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
subr_devstat.c Device megapatch 4/6: 2004-02-21 21:10:55 +00:00
subr_disk.c Report bio_pblkbo instead of bio_blkno. 2003-10-18 17:27:10 +00:00
subr_eventhandler.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
subr_hints.c Add a resource_disabled() helper function that returns true (non-zero) if 2003-07-02 16:01:38 +00:00
subr_kobj.c * Add multiple inheritance to kobj. Each class can have zero or more base 2003-10-16 09:16:28 +00:00
subr_log.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
subr_mbpool.c Pass MTX_DEF as the last argument to mtx_init() instead of 0. This 2003-12-07 21:53:41 +00:00
subr_mbuf.c Track current and peak sfbuf usage, export the values via sysctl. 2003-12-27 07:52:47 +00:00
subr_mchain.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
subr_module.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
subr_msgbuf.c Put the message about msgbuf cksum mismatch under bootverbose and tell 2003-09-05 11:12:00 +00:00
subr_param.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
subr_pcpu.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
subr_power.c Move the kernel power change printf under bootverbose since the 2004-01-02 18:24:13 +00:00
subr_prf.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
subr_prof.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
subr_rman.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
subr_rtc.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
subr_sbuf.c Mechanical whistespace cleanup. 2004-02-17 10:21:03 +00:00
subr_scanf.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
subr_sleepqueue.c Remove a bogus assertion and readd it in a more correct location. A thread 2004-03-16 18:56:22 +00:00
subr_smp.c Change the type of the various CPU masks to cpumask_t. Note that as 2004-03-27 18:21:24 +00:00
subr_taskqueue.c Tidy up the thread taskqueue implementation and close a lost wakeup race. 2004-02-19 22:03:52 +00:00
subr_trap.c Remove unused variable. 2004-03-31 08:20:44 +00:00
subr_turnstile.c Rename turnstile_wakeup() to turnstile_broadcast() to make the naming 2004-04-06 19:07:21 +00:00
subr_witness.c Emit a traceback when witness_trace is set and witness_warn() is 2004-03-23 00:32:27 +00:00
sys_generic.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
sys_pipe.c Revise the direct or optimized case to use uiomove_fromphys() by the reader 2004-03-27 19:50:23 +00:00
sys_process.c Finish fixing up Alpha to work with an MP safe ptrace(): 2004-04-01 20:56:44 +00:00
sys_socket.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
syscalls.c Regen. 2004-04-05 10:17:23 +00:00
syscalls.master Add lgetfh(2) which is like getfh(2) but doesn't follow symlinks. 2004-04-05 10:15:53 +00:00
sysv_ipc.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
sysv_msg.c Slight whitespace consistency improvement: 2003-11-07 04:47:14 +00:00
sysv_sem.c Adjust the number of processes waiting on a semaphore properly if we're 2004-03-17 09:37:13 +00:00
sysv_shm.c Correct a reference counting bug in shmat(2). If vm_map_find(9) 2004-02-05 18:00:35 +00:00
tty_compat.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
tty_conf.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
tty_cons.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
tty_pty.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
tty_subr.c Revert stuff which accidentally ended up in the previous commit. 2003-07-22 10:36:36 +00:00
tty_tty.c Device megapatch 4/6: 2004-02-21 21:10:55 +00:00
tty.c Device megapatch 3/6: 2004-02-21 20:41:11 +00:00
uipc_accf.c Use __FBSDID(). 2003-06-11 00:56:59 +00:00
uipc_cow.c In some cases, sf_buf_alloc() should sleep with pri PCATCH; in others, it 2004-04-03 09:16:27 +00:00
uipc_domain.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
uipc_jumbo.c Lock the vm object when removing a page. 2003-06-11 21:23:04 +00:00
uipc_mbuf2.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
uipc_mbuf.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
uipc_proto.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
uipc_sem.c Add ksem_timedwait() to complement ksem_wait(). 2004-02-03 05:08:32 +00:00
uipc_sockbuf.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
uipc_socket2.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
uipc_socket.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
uipc_syscalls.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
uipc_usrreq.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
vfs_acl.c Update my personal copyrights and NETA copyrights in the kernel 2004-02-22 00:33:12 +00:00
vfs_aio.c Make the process_exit eventhandler run without Giant. Add Giant hooks 2004-03-14 02:06:28 +00:00
vfs_bio.c Replace a manual check of a VMIO candidate with vn_canvmio(). This 2004-03-12 12:02:12 +00:00
vfs_cache.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
vfs_cluster.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
vfs_default.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
vfs_export.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
vfs_extattr.c Removed some less than useful comments: 2004-04-06 10:05:02 +00:00
vfs_init.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
vfs_lookup.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
vfs_mount.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
vfs_subr.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
vfs_syscalls.c Removed some less than useful comments: 2004-04-06 10:05:02 +00:00
vfs_vnops.c Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00
vnode_if.src Remove advertising clause from University of California Regent's license, 2004-04-05 21:03:37 +00:00