Alexander Motin 1cf78c85c5 Create own free list for each of the first 32 possible allocation sizes. ... In case of 4K allocation quantum that means for allocations up to 128K. With growth of memory fragmentation these lists may grow to quite a large sizes (tenths and hundreds of thousands items). Having in one list items of different sizes in worst case may require full linear list traversal, that may be very expensive. Having lists for items of single size means that unless user specify some alignment or border requirements (that are very rare cases) first item found on the list should satisfy the request. While running SPEC NFS benchmark on top of ZFS on 24-core machine with 84GB RAM this change reduces CPU time spent in vmem_xalloc() from 8% and lock congestion spinning around it from 20% to invisible levels. And that all is by the cost of just 26 more pointers per vmem instance. If at some point our kernel will start to actively use KVA allocations with odd sizes above 128K, something may need to be done to bigger lists also.		2013-12-11 21:48:04 +00:00
..
amd64	Fix typo when initializing the vlapic version register ('<<' instead of '<').	2013-12-11 06:28:44 +00:00
arm	Loose -> Lose so this sentence makes sense.	2013-12-11 15:32:28 +00:00
boot	Add gpio config for usb1 in dts.	2013-12-09 07:15:46 +00:00
bsm	Change the cap_rights_t type from uint64_t to a structure that we can extend	2013-09-05 00:09:56 +00:00
cam	When comparing device IDs, make sure that they have the same type	2013-12-08 20:43:01 +00:00
cddl	Correct the check for errors from proc_rwmem().	2013-12-11 04:31:40 +00:00
compat	Migrate the sendfile_sync structure into a public(ish) API in preparation	2013-12-01 03:53:21 +00:00
conf	Break build with error in case when both syscons and newcons are enabled.	2013-12-10 15:36:29 +00:00
contrib	Remove 'inline' from ar9300_init_pll(), it's too big to inline.	2013-11-08 16:28:00 +00:00
crypto	fix broken style(9) in r258399	2013-11-23 00:28:18 +00:00
ddb
dev	Destroy mtx lock when failed to allocate memory during attach.	2013-12-11 17:40:35 +00:00
fs	For software builds, the NFS client does many small	2013-12-07 23:05:59 +00:00
gdb	rename scheduler->swapper and SI_SUB_RUN_SCHEDULER->SI_SUB_LAST	2013-07-24 09:45:31 +00:00
geom	Partially revert r259080. bde@ pointed out that there are a lot more style bugs	2013-12-08 09:34:56 +00:00
gnu/fs/reiserfs
i386	Move constants for indices in the local APIC's local vector table from	2013-12-09 21:08:52 +00:00
ia64	Make process descriptors standard part of the kernel. rwhod(8) already	2013-11-30 15:08:35 +00:00
isa
kern	Create own free list for each of the first 32 possible allocation sizes.	2013-12-11 21:48:04 +00:00
kgssapi	Add support for host-based (Kerberos 5 service principal) initiator	2013-07-09 01:05:28 +00:00
libkern	Fix typo	2013-11-29 20:14:26 +00:00
mips	Add missing includes.	2013-12-10 09:38:18 +00:00
modules	Disable error message about failed attempt to attach fbd when drm2 built with	2013-12-10 15:53:00 +00:00
net	Add constants for use in interrogating various fiber and copper connectors	2013-11-27 20:20:02 +00:00
net80211	Make sure any waiters on the scan results get notified if the scan task	2013-11-29 22:24:57 +00:00
netatalk	The r48589 promised to remove implicit inclusion of if_var.h soon. Prepare	2013-10-26 17:58:36 +00:00
netgraph	Eliminate duplicated & dead code.	2013-11-08 22:40:33 +00:00
netinet	In a situation where:	2013-12-02 03:11:25 +00:00
netinet6	- For kernel compiled only with KDTRACE_HOOKS and not any lock debugging	2013-11-25 07:38:45 +00:00
netipsec	Initialize prot variable.	2013-11-11 13:19:55 +00:00
netipx	The r48589 promised to remove implicit inclusion of if_var.h soon. Prepare	2013-10-26 17:58:36 +00:00
netnatm	Provide includes that are needed in these files, and before were read	2013-10-26 18:18:50 +00:00
netpfil	Simplify O_NAT opcode handling.	2013-11-28 15:28:51 +00:00
netsmb	Catch up with sb_timeo type change in r255138. This fixes	2013-11-08 08:44:09 +00:00
nfs	The r48589 promised to remove implicit inclusion of if_var.h soon. Prepare	2013-10-26 17:58:36 +00:00
nfsclient	For software builds, the NFS client does many small	2013-12-07 23:05:59 +00:00
nfsserver	The r48589 promised to remove implicit inclusion of if_var.h soon. Prepare	2013-10-26 17:58:36 +00:00
nlm	Intermittent crashes in the NLM (rpc.lockd) code during system	2013-09-06 23:14:31 +00:00
ofed	Fix undefined behavior: (1 << 31) is not defined as 1 is an int and this	2013-11-30 22:17:27 +00:00
opencrypto	Fix build with 'crypto' and 'zfs' in the same kernel. This was the path	2013-12-08 21:59:46 +00:00
pc98	Fix a typo.	2013-12-05 21:58:02 +00:00
pci	Add preliminary support for RTL8168EP.	2013-10-29 05:37:05 +00:00
powerpc	Make more unsigned ints signed.	2013-12-07 22:25:07 +00:00
rpc	Replace Sun Industry Standards Source License for Sun RPC code with a	2013-11-25 19:08:38 +00:00
security	There is no sysctl with the MIB { CTL_KERN, KERN_MAXID }.	2013-12-05 21:55:10 +00:00
sparc64	Restore a vital comment nuked in r259016.	2013-12-08 15:25:19 +00:00
sys	Merge VT(9) project (a.k.a. newcons).	2013-12-05 22:38:53 +00:00
teken	Merge VT(9) project (a.k.a. newcons).	2013-12-05 22:38:53 +00:00
tools	dtrace sdt: remove the ugly sname parameter of SDT_PROBE_DEFINE	2013-11-26 08:46:27 +00:00
ufs	We needlessly panic when trying to flush MKDIR_PARENT dependencies.	2013-12-01 07:34:21 +00:00
vm	Eliminate a redundant parameter to vm_radix_replace().	2013-12-08 20:07:02 +00:00
x86	Use fixed-width types for all fields in MP Table structures and pack	2013-12-11 21:19:04 +00:00
xdr
xen	Remove redundant redeclaration of gdtset in sys/xen/xen-os.h, to silence	2013-10-18 17:06:13 +00:00
Makefile