Rick Macklem 93c5875b24 Fix several performance related issues in the new NFS server's ... DRC for NFS over TCP. - Increase the size of the hash tables. - Create a separate mutex for each hash list of the TCP hash table. - Single thread the code that deletes stale cache entries. - Add a tunable called vfs.nfsd.tcphighwater, which can be increased to allow the cache to grow larger, avoiding the overhead of frequent scans to delete stale cache entries. (The default value will result in frequent scans to delete stale cache entries, analagous to what the pre-patched code does.) - Add a tunable called vfs.nfsd.cachetcp that can be used to disable DRC caching for NFS over TCP, since the old NFS server didn't DRC cache TCP. It also adjusts the size of nfsrc_floodlevel dynamically, so that it is always greater than vfs.nfsd.tcphighwater. For UDP the algorithm remains the same as the pre-patched code, but the tunable vfs.nfsd.udphighwater can be used to allow the cache to grow larger and reduce the overhead caused by frequent scans for stale entries. UDP also uses a larger hash table size than the pre-patched code. Reported by: wollman Tested by: wollman (earlier version of patch) Submitted by: ivoras (earlier patch) Reviewed by: jhb (earlier version of patch) MFC after: 1 month		2013-08-14 21:11:26 +00:00
..
amd64	Merge acpica_machdep.h for amd64 and i386 and move to x86. In fact, these	2013-08-13 22:05:10 +00:00
arm	Rename imx_machdep.c to imx51_machdep.c, because it contains hardware	2013-08-13 21:12:28 +00:00
boot
bsm
cam	Added 4K quirks for:-	2013-08-14 15:18:28 +00:00
cddl	Use kld_{load,unload} instead of mod_{load,unload} for the linker file load	2013-08-14 00:42:21 +00:00
compat
conf
contrib
crypto
ddb
dev	If sys/param.h MAXPHYS has been tuned to exceed MFI_MAXPHYS, the mfi(4)	2013-08-14 15:50:34 +00:00
fs	Fix several performance related issues in the new NFS server's	2013-08-14 21:11:26 +00:00
gdb
geom	Return error when opening read-only volumes (like RAID4/5/...) for writing.	2013-08-13 07:56:40 +00:00
gnu/fs/reiserfs
i386	Merge acpica_machdep.h for amd64 and i386 and move to x86. In fact, these	2013-08-13 22:05:10 +00:00
ia64	Tidy up global locks for ACPICA. There is no functional change.	2013-08-13 21:34:03 +00:00
isa
kern	Use kld_{load,unload} instead of mod_{load,unload} for the linker file load	2013-08-14 00:42:21 +00:00
kgssapi
libkern
mips
modules	Fix make depend	2013-08-14 08:03:57 +00:00
net
net80211	Replace the homegrown implementation of nitems() with calls to nitems()	2013-08-14 04:24:25 +00:00
netatalk
netgraph
netinet	Virtualize carp(4) variables to have per vnet control.	2013-08-13 19:59:49 +00:00
netinet6
netipsec
netipx
netnatm
netpfil
netsmb
nfs
nfsclient
nfsserver
nlm
ofed
opencrypto
pc98
pci
powerpc
rpc
security
sparc64
sys	Use kld_{load,unload} instead of mod_{load,unload} for the linker file load	2013-08-14 00:42:21 +00:00
teken
tools
ufs
vm	- Add a statically allocated memguard arena since it is needed very early	2013-08-13 22:40:43 +00:00
x86	Merge acpica_machdep.h for amd64 and i386 and move to x86. In fact, these	2013-08-13 22:05:10 +00:00
xdr
xen
Makefile