d/freebsd-nq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
4a24038b4c
freebsd-nq/sys/kern
History
Matthew Dillon 2b6b0df712 This implements a better launder limiting solution. There was a solution 
in 4.2-REL which I ripped out in -stable and -current when implementing the
low-memory handling solution.  However, maxlaunder turns out to be the saving
grace in certain very heavily loaded systems (e.g. newsreader box).  The new
algorithm limits the number of pages laundered in the first pageout daemon
pass.  If that is not sufficient then suceessive will be run without any
limit.

Write I/O is now pipelined using two sysctls, vfs.lorunningspace and
vfs.hirunningspace.  This prevents excessive buffered writes in the
disk queues which cause long (multi-second) delays for reads.  It leads
to more stable (less jerky) and generally faster I/O streaming to disk
by allowing required read ops (e.g. for indirect blocks and such) to occur
without interrupting the write stream, amoung other things.

NOTE: eventually, filesystem write I/O pipelining needs to be done on a
per-device basis.  At the moment it is globalized.
2000-12-26 19:41:38 +00:00
..
bus_if.m Alter the return value and arguments of the GET_RESOURCE_LIST bus method. 2000-11-28 06:49:15 +00:00
device_if.m * Factor out the object system from new-bus so that it can be used by 2000-04-08 14:17:18 +00:00
genassym.sh Use "nm | awk ..." instead of genassym(1) to generate symbol value headers. 2000-06-02 09:27:48 +00:00
imgact_aout.c Change the proc information returned from the kernel so that it 2000-12-12 07:25:57 +00:00
imgact_elf.c - Change the allproc_lock to use a macro, ALLPROC_LOCK(how), instead 2000-12-13 00:17:05 +00:00
imgact_gzip.c useracc() the prequel: 1999-10-29 18:09:36 +00:00
imgact_shell.c Fix #! script exec under linux emulation. If a script is exec'd from a 2000-04-26 20:58:40 +00:00
inflate.c Change #ifdef KERNEL to #ifdef _KERNEL in the public headers. "KERNEL" 1999-12-29 05:07:58 +00:00
init_main.c - Change the allproc_lock to use a macro, ALLPROC_LOCK(how), instead 2000-12-13 00:17:05 +00:00
init_sysent.c Regen. 2000-12-02 05:45:32 +00:00
kern_acct.c Use callout_reset instead of timeout(9). Most callouts are statically 2000-11-27 22:52:31 +00:00
kern_acl.c Staticize some malloc M_ instances. 2000-12-08 20:09:00 +00:00
kern_cap.c Remove unneeded #include <sys/proc.h> lines. 2000-10-29 13:57:19 +00:00
kern_clock.c o Export cp_time ("CPU time statistics") using SYSCTL_OPAQUE. 2000-11-20 00:44:58 +00:00
kern_conf.c Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
kern_descrip.c Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
kern_environment.c Previous commit changing SYSCTL_HANDLER_ARGS violated KNF. 2000-07-04 11:25:35 +00:00
kern_event.c Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
kern_exec.c Protect proc.p_pptr and proc.p_children/p_sibling with the 2000-12-23 19:43:10 +00:00
kern_exit.c Protect proc.p_pptr and proc.p_children/p_sibling with the 2000-12-23 19:43:10 +00:00
kern_fork.c Protect proc.p_pptr and proc.p_children/p_sibling with the 2000-12-23 19:43:10 +00:00
kern_idle.c Catch up to moving headers: 2000-10-20 07:58:15 +00:00
kern_intr.c Fix another sched_sihand -> sched_swi in a KTR trace message. 2000-12-18 23:59:34 +00:00
kern_jail.c Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
kern_kthread.c Protect proc.p_pptr and proc.p_children/p_sibling with the 2000-12-23 19:43:10 +00:00
kern_ktr.c Add in MI implementations of the KTR trace buffer ddb commands. The 2000-12-15 00:01:20 +00:00
kern_ktrace.c Protect proc.p_pptr and proc.p_children/p_sibling with the 2000-12-23 19:43:10 +00:00
kern_linker.c Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
kern_lock.c Use msleep instead of mtx_exit; tsleep; mtx_enter, which is not safe. 2000-12-01 02:18:38 +00:00
kern_lockf.c Commit the remaining part of PR14914: 1999-11-16 16:28:58 +00:00
kern_malloc.c Introduce the M_ZERO flag to malloc(9) 2000-10-20 17:54:55 +00:00
kern_mib.c Previous commit changing SYSCTL_HANDLER_ARGS violated KNF. 2000-07-04 11:25:35 +00:00
kern_module.c Staticize some malloc M_ instances. 2000-12-08 20:09:00 +00:00
kern_mutex.c - Add a new flag MTX_QUIET that can be passed to the various mtx_* 2000-12-13 21:53:42 +00:00
kern_ntptime.c Updates to the ntp pll from John Hay. 2000-09-10 09:13:34 +00:00
kern_physio.c Separate the struct bio related stuff out of <sys/buf.h> into 2000-05-05 09:59:14 +00:00
kern_proc.c Protect proc.p_pptr and proc.p_children/p_sibling with the 2000-12-23 19:43:10 +00:00
kern_prot.c Protect proc.p_pptr and proc.p_children/p_sibling with the 2000-12-23 19:43:10 +00:00
kern_random.c This patchset fixes a large number of file descriptor race conditions. 2000-11-18 21:01:04 +00:00
kern_resource.c - Change the allproc_lock to use a macro, ALLPROC_LOCK(how), instead 2000-12-13 00:17:05 +00:00
kern_shutdown.c Stick the kthread API in a kthread_* namespace, and the specialized kproc 2000-12-15 20:08:20 +00:00
kern_sig.c Protect proc.p_pptr and proc.p_children/p_sibling with the 2000-12-23 19:43:10 +00:00
kern_subr.c - Split the run queue and sleep queue linkage, so that a process 2000-11-17 18:09:18 +00:00
kern_switch.c Catch up to moving headers: 2000-10-20 07:58:15 +00:00
kern_synch.c - Change the allproc_lock to use a macro, ALLPROC_LOCK(how), instead 2000-12-13 00:17:05 +00:00
kern_syscalls.c sysvipc loadable. 2000-12-01 08:57:47 +00:00
kern_sysctl.c Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
kern_tc.c Major update to the way synchronization is done in the kernel. Highlights 2000-09-07 01:33:02 +00:00
kern_time.c Use callout_reset instead of timeout(9). Most callouts are statically 2000-11-27 22:52:31 +00:00
kern_timeout.c Revert the last commit to the callout interface, and add a flag to 2000-11-25 06:22:16 +00:00
kern_xxx.c $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
ksched.c Remove unneeded #include <sys/kernel.h> 2000-04-29 15:36:14 +00:00
link_aout.c Change the conditionaal so that we only build this on i386 instead of 2000-09-29 13:32:24 +00:00
link_elf_obj.c Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
link_elf.c Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
linker_if.m First round implementation of a fine grain enhanced module to module 2000-04-29 13:19:31 +00:00
Make.tags.inc Update tags directive to reflect the new location of soft updates 2000-07-04 00:18:43 +00:00
makedevops.pl Put the header section in the header file not the c file. 2000-10-15 15:19:35 +00:00
Makefile ${MACHINE} -> ${MACHINE_ARCH} 1999-11-14 13:54:44 +00:00
makeobjops.pl * Factor out the object system from new-bus so that it can be used by 2000-04-08 14:17:18 +00:00
makesyscalls.sh Add reserved lkmressys keyword. I swear, this script will die the 2000-12-01 08:47:54 +00:00
md5c.c Add ia64 support. 2000-09-29 13:36:47 +00:00
p1003_1b.c Add $FreeBSD$ 2000-05-01 20:32:07 +00:00
posix4_mib.c Add $FreeBSD$. 2000-04-22 15:13:06 +00:00
subr_acl_posix1e.c Staticize some malloc M_ instances. 2000-12-08 20:09:00 +00:00
subr_autoconf.c Back out the previous change to the queue(3) interface. 2000-05-26 02:09:24 +00:00
subr_blist.c Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
subr_bus.c Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
subr_clist.c $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
subr_devstat.c Support for unsigned integer and long sysctl variables. Update the 2000-07-05 07:46:41 +00:00
subr_disk.c Don't clone impossible unit numbers for disks. 2000-12-15 17:55:24 +00:00
subr_disklabel.c Make diskerr() always log with printf. 2000-11-26 19:29:15 +00:00
subr_diskmbr.c Make diskerr() always log with printf. 2000-11-26 19:29:15 +00:00
subr_diskslice.c Add a new ioctl for doing virgin disklabels. 2000-10-31 07:05:40 +00:00
subr_eventhandler.c - Convert the per-eventhandler list mutex to a lockmgr lock so that it can 2000-12-12 04:01:35 +00:00
subr_kobj.c Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
subr_log.c Replace logwakeup() with "int msgbuftrigger". There is little 2000-12-20 21:50:37 +00:00
subr_module.c Trim unused options (or #ifdef for undoc options). 1999-10-11 15:19:12 +00:00
subr_param.c Remove unneeded <stddef.h> #includes. 2000-10-29 16:57:42 +00:00
subr_prf.c Make sure we have a non-null proc pointer before referring to fields 2000-12-23 07:33:32 +00:00
subr_prof.c Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
subr_rman.c Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
subr_sbuf.c String buffer API 2000-12-13 19:51:07 +00:00
subr_scanf.c Change the prototype of the strto* routines to make the second 1999-11-24 01:03:08 +00:00
subr_smp.c This is kind of a nasty hack, but it appears to solve the Compaq DL360 2000-12-06 03:47:14 +00:00
subr_taskqueue.c Staticize some malloc M_ instances. 2000-12-08 20:09:00 +00:00
subr_trap.c If we fail to emulate a vm86 trap in kernel mode, then we use 2000-12-13 18:57:15 +00:00
subr_turnstile.c - Add a new flag MTX_QUIET that can be passed to the various mtx_* 2000-12-13 21:53:42 +00:00
subr_witness.c - Add a new flag MTX_QUIET that can be passed to the various mtx_* 2000-12-13 21:53:42 +00:00
subr_xxx.c Remove five now unused fields from struct cdevsw. They should never 1999-09-25 18:24:47 +00:00
sys_generic.c Only call bwillwrite() for vnodes. Do not penalize devices or pipes. 2000-12-07 23:45:57 +00:00
sys_pipe.c This patchset fixes a large number of file descriptor race conditions. 2000-11-18 21:01:04 +00:00
sys_process.c Protect proc.p_pptr and proc.p_children/p_sibling with the 2000-12-23 19:43:10 +00:00
sys_socket.c Instead of just blindly setting -rw-rw-rw-: 2000-07-02 23:56:45 +00:00
syscalls.c Regen. 2000-12-02 05:45:32 +00:00
syscalls.master Remove thr_sleep and thr_wakeup. Remove fields p_nthread and p_wakeup 2000-12-02 05:41:30 +00:00
sysv_ipc.c sysvipc loadable. 2000-12-01 08:57:47 +00:00
sysv_msg.c Add forgotten SYSCALL_MODULE_HELPER() for msgsys() syscall. 2000-12-05 23:05:45 +00:00
sysv_sem.c sysvipc loadable. 2000-12-01 08:57:47 +00:00
sysv_shm.c sysvipc loadable. 2000-12-01 08:57:47 +00:00
tty_compat.c $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
tty_conf.c Don't refer to TABLDISC in the comments here. 2000-01-30 10:14:13 +00:00
tty_cons.c Replace logwakeup() with "int msgbuftrigger". There is little 2000-12-20 21:50:37 +00:00
tty_pty.c Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
tty_snoop.c Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
tty_subr.c $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
tty_tty.c Add snapshots to the fast filesystem. Most of the changes support 2000-07-11 22:07:57 +00:00
tty.c Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
uipc_accf.c Remove unneeded #include <sys/proc.h> lines. 2000-10-29 13:57:19 +00:00
uipc_domain.c Use callout_reset instead of timeout(9). Most callouts are statically 2000-11-27 22:52:31 +00:00
uipc_mbuf2.c * Have m_pulldown() use the new M_WRITABLE() macro in order to determine 2000-11-11 23:04:15 +00:00
uipc_mbuf.c * Rename M_WAIT mbuf subsystem flag to M_TRYWAIT. 2000-12-21 21:44:31 +00:00
uipc_proto.c Trim unused options (or #ifdef for undoc options). 1999-10-11 15:19:12 +00:00
uipc_sockbuf.c Make sbcompress use the new M_WRITABLE macro. Previously sbcompress 2000-11-19 22:22:47 +00:00
uipc_socket2.c Make sbcompress use the new M_WRITABLE macro. Previously sbcompress 2000-11-19 22:22:47 +00:00
uipc_socket.c * Rename M_WAIT mbuf subsystem flag to M_TRYWAIT. 2000-12-21 21:44:31 +00:00
uipc_syscalls.c * Rename M_WAIT mbuf subsystem flag to M_TRYWAIT. 2000-12-21 21:44:31 +00:00
uipc_usrreq.c * Rename M_WAIT mbuf subsystem flag to M_TRYWAIT. 2000-12-21 21:44:31 +00:00
vfs_acl.c Staticize some malloc M_ instances. 2000-12-08 20:09:00 +00:00
vfs_aio.c Remove thr_sleep and thr_wakeup. Remove fields p_nthread and p_wakeup 2000-12-02 05:41:30 +00:00
vfs_bio.c This implements a better launder limiting solution. There was a solution 2000-12-26 19:41:38 +00:00
vfs_cache.c Staticize some malloc M_ instances. 2000-12-08 20:09:00 +00:00
vfs_cluster.c This implements a better launder limiting solution. There was a solution 2000-12-26 19:41:38 +00:00
vfs_conf.c Add `_PATH_DEVZERO'. 2000-12-09 09:35:55 +00:00
vfs_default.c Give vop_mmap an untimely death. The opportunity to give it a timely 2000-11-01 17:57:24 +00:00
vfs_export.c Stick the kthread API in a kthread_* namespace, and the specialized kproc 2000-12-15 20:08:20 +00:00
vfs_extattr.c - Change the allproc_lock to use a macro, ALLPROC_LOCK(how), instead 2000-12-13 00:17:05 +00:00
vfs_init.c Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
vfs_lookup.c Untangle vfsinit() a bit. Use seperate sysinit functions rather than 2000-12-06 07:09:08 +00:00
vfs_mount.c Add `_PATH_DEVZERO'. 2000-12-09 09:35:55 +00:00
vfs_subr.c Stick the kthread API in a kthread_* namespace, and the specialized kproc 2000-12-15 20:08:20 +00:00
vfs_syscalls.c - Change the allproc_lock to use a macro, ALLPROC_LOCK(how), instead 2000-12-13 00:17:05 +00:00
vfs_vnops.c Implement a low-memory deadlock solution. 2000-11-18 23:06:26 +00:00
vnode_if.pl Simplify this a bit so that it doesn't have to generate silly redundant 2000-12-06 06:59:38 +00:00
vnode_if.src Give vop_mmap an untimely death. The opportunity to give it a timely 2000-11-01 17:57:24 +00:00