Alexander Motin 3b2f2cb8e9 Allow UMA hash tables to expand faster then 2x in 20 seconds. ... ZFS ABD allocates tons of 4KB chunks via UMA, requiring huge hash tables. With initial hash table size of only 32 elements it takes ~20 expansions or ~400 seconds to adapt to handling 220GB ZFS ARC. During that time not only the hash table is highly inefficient, but also each of those expan- sions takes significant time with the lock held, blocking operation. On my test system with 256GB of RAM and ZFS pool of 28 HDDs this change reduces time needed to first time read 240GB from ~300-400s, during which system is quite busy and unresponsive, to only ~150s with light CPU load and just 5 sub-second CPU spikes to expand the hash table. MFC after: 2 weeks Sponsored by: iXsystems, Inc.		2019-06-06 23:57:28 +00:00
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amd64	Fix a race between fasttrap and the user breakpoint handler.	2019-06-06 16:03:25 +00:00
arm	Implement the ffs and fls functions, and their longer counterparts, in	2019-05-28 15:47:00 +00:00
arm64	very large dma mappings can cause integer overflow	2019-06-03 19:19:35 +00:00
bsm	Create new EINTEGRITY error with message "Integrity check failed".	2019-01-17 06:35:45 +00:00
cam	Simplify math added in r310524.	2019-05-22 15:39:35 +00:00
cddl	Fix a race between fasttrap and the user breakpoint handler.	2019-06-06 16:03:25 +00:00
compat	Make the linuxkpi's alloc_pages() consistently return wired pages.	2019-06-06 16:09:19 +00:00
conf	Expose the kernel's build-ID through sysctl	2019-06-04 13:07:10 +00:00
contrib	While working on a PR, more are discovered.	2019-06-04 19:37:51 +00:00
crypto	aesni(4): Fix trivial type typo	2019-05-27 00:47:51 +00:00
ddb	Extract eventfilter declarations to sys/_eventfilter.h	2019-05-20 00:38:23 +00:00
dev	Do not overwrite the RGMII bits in the CPU port register of Switch.	2019-06-06 21:25:46 +00:00
dts	arm64: Add support for NanoPI NEO2	2019-05-02 12:56:13 +00:00
fs	Manually clear text references on reclaim for nullfs and tmpfs.	2019-06-05 20:16:25 +00:00
gdb
geom	geli: build warning fixes	2019-06-05 22:46:18 +00:00
gnu	dts: Import files from Linux 5.1	2019-05-08 19:27:30 +00:00
i386	Fix a race between fasttrap and the user breakpoint handler.	2019-06-06 16:03:25 +00:00
isa
kern	Add a testing facility to manually reclaim a vnode	2019-06-06 15:04:50 +00:00
kgssapi	* Handle SIGPIPE in gssd	2019-02-21 01:30:37 +00:00
libkern	random(4): depessimize arc4random	2019-05-12 06:32:46 +00:00
mips	octusb: fix detach loop over USB ports	2019-06-01 18:19:16 +00:00
modules	For armv6 and armv7, build hwpmc_armv7.c as well as the base hwpmc_arm.c.	2019-06-06 15:21:36 +00:00
net	Restore the comment removed in r348745.	2019-06-06 17:20:35 +00:00
net80211	Restructure mbuf send tags to provide stronger guarantees.	2019-05-24 22:30:40 +00:00
netgraph	Remove 'dir' argument in ng_ipfw_input, since ip_fw_args now has this info.	2019-03-14 22:30:05 +00:00
netinet	r347382 added receiver side DSACK support for the TCP base stack.	2019-06-06 07:49:03 +00:00
netinet6	Restructure mbuf send tags to provide stronger guarantees.	2019-05-24 22:30:40 +00:00
netipsec	Add deprecation warnings for IPsec algorithms deprecated in RFC 8221.	2019-05-23 22:06:57 +00:00
netpfil	Initialize V_nat64out methods explicitly.	2019-06-05 09:25:40 +00:00
netsmb	Remove unused argument to priv_check_cred.	2018-12-11 19:32:16 +00:00
nfs
nfsclient
nfsserver
nlm
ofed	Fix prio vs. nonprio tagged traffic in RDMACM	2019-06-04 06:21:31 +00:00
opencrypto	cryptodeflate: Drop z_stream zbuf.state->dummy from SDT probe.	2019-05-24 02:44:15 +00:00
powerpc	powerpc/moea: Fix moea64 native VA invalidation	2019-06-01 01:40:14 +00:00
riscv	Include ktr.h in more compilation units	2019-05-21 20:38:48 +00:00
rpc	Fix malloc stats for the RPCSEC_GSS server code when DEBUG is enabled.	2019-04-04 01:23:06 +00:00
security	Extract eventfilter declarations to sys/_eventfilter.h	2019-05-20 00:38:23 +00:00
sparc64	FCP-101: Remove wb(4)	2019-05-17 15:24:34 +00:00
sys	first step towards enforcing must-succeed semantics for bus accessors	2019-06-05 13:18:00 +00:00
teken	Attempt to complete fixing programmable function keys for syscons.	2019-02-20 02:14:41 +00:00
tests	Regularize the Netflix copyright	2019-02-04 21:28:25 +00:00
tools	Avoid literal @generated tag in file-generating scripts	2019-05-08 13:35:51 +00:00
ufs	Add a missing bresle() in seldom-used error return.	2019-05-28 17:31:35 +00:00
vm	Allow UMA hash tables to expand faster then 2x in 20 seconds.	2019-06-06 23:57:28 +00:00
x86	another occurrence where a very large dma mapping can cause integer overflow	2019-06-05 13:08:21 +00:00
xdr
xen	xen: introduce a new way to setup event channel upcall	2019-01-30 11:34:52 +00:00
Makefile