[Bug 190300] vmdaemon kernel thread consumes 100% cpu
bugzilla-noreply at freebsd.org
bugzilla-noreply at freebsd.org
Fri Jul 25 12:19:29 UTC 2014
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=190300
steve.polyack at intermedix.com changed:
What |Removed |Added
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CC| |steve.polyack at intermedix.co
| |m
--- Comment #2 from steve.polyack at intermedix.com ---
We're also seeing this on a FreeBSD server which has recently been upgraded
from 9.2 to 10.0, and using postgresql-9.3 The server has 256GB of RAM, but
only 64GB are dedicated to postgres via shared_buffers.
We've also noticed mbuf denied failures and very poor interactive performance
when vmdaemon CPU usage is high, which is almost all of the time.
# vmstat -z
ITEM SIZE LIMIT USED FREE REQ FAIL SLEEP
UMA Kegs: 384, 0, 95, 5, 95, 0, 0
UMA Zones: 4736, 0, 95, 0, 95, 0, 0
UMA Slabs: 80, 0, 7694, 6, 22132, 0, 0
UMA RCntSlabs: 88, 0, 11976, 39, 11976, 0, 0
UMA Hash: 256, 0, 2, 13, 8, 0, 0
4 Bucket: 32, 0, 157, 6468,37583750, 0, 0
8 Bucket: 64, 0, 236, 3794, 5426, 0, 0
16 Bucket: 128, 0, 371, 3659, 728, 36, 0
32 Bucket: 256, 0, 593, 6292, 162352,4213, 0
64 Bucket: 512, 0, 1019, 1493, 444970,232031, 0
128 Bucket: 1024, 0, 1428, 1264, 1637010, 277, 0
vmem btag: 56, 0, 3206, 12059, 299550, 215, 0
VM OBJECT: 256, 0, 33864, 2376, 798557, 0, 0
RADIX NODE: 144, 0, 4311308, 12742,15145691, 57, 0
MAP: 240, 0, 3, 61, 3, 0, 0
KMAP ENTRY: 128, 0, 7, 396, 7, 0, 0
MAP ENTRY: 128, 0, 6265, 5112, 1725230, 0, 0
VMSPACE: 448, 0, 145, 1106, 34759, 0, 0
fakepg: 104, 0, 0, 0, 0, 0, 0
mt_zone: 4112, 0, 343, 0, 343, 0, 0
16: 16, 0, 4637, 3144, 1155861, 0, 0
32: 32, 0, 4603, 3897, 821025, 0, 0
64: 64, 0, 9892, 68910,122945074, 0, 0
128: 128, 0, 7760, 48350, 9999121, 0, 0
256: 256, 0, 7126, 48704, 9244069, 0, 0
512: 512, 0, 1053, 32379, 123871, 0, 0
1024: 1024, 0, 123, 673, 40412, 0, 0
2048: 2048, 0, 341, 207, 46366, 0, 0
4096: 4096, 0, 573, 190, 39254, 0, 0
SLEEPQUEUE: 80, 0, 622, 3532, 622, 0, 0
uint64 pcpu: 8, 0, 1552, 112, 1552, 0, 0
Files: 80, 0, 2208, 4542,39412500, 0, 0
TURNSTILE: 136, 0, 622, 1518, 622, 0, 0
rl_entry: 40, 0, 415, 3585, 415, 0, 0
umtx pi: 96, 0, 0, 0, 0, 0, 0
MAC labels: 40, 0, 0, 0, 0, 0, 0
PROC: 1208, 0, 162, 219, 34775, 0, 0
THREAD: 1168, 0, 571, 50, 626, 0, 0
cpuset: 72, 0, 176, 209, 208, 0, 0
audit_record: 1248, 0, 0, 0, 0, 0, 0
mbuf_packet: 256, 104592120, 16370, 7380,112650926, 0, 0
mbuf: 256, 104592120, 16, 4494,100391690, 5, 0
mbuf_cluster: 2048, 16342518, 23750, 0, 23750,12060, 0
mbuf_jumbo_page: 4096, 8171259, 0, 101,37590064, 92, 0
mbuf_jumbo_9k: 9216, 2421113, 0, 0, 0, 0, 0
mbuf_jumbo_16k: 16384, 1361876, 0, 0, 0, 0, 0
mbuf_ext_refcnt: 4, 0, 0, 0, 0, 0, 0
g_bio: 248, 0, 0, 7392,12897141, 0, 0
ttyinq: 160, 0, 300, 1125, 1245, 0, 0
ttyoutq: 256, 0, 157, 1193, 655, 0, 0
ata_request: 336, 0, 0, 0, 0, 0, 0
vtnet_tx_hdr: 24, 0, 0, 0, 0, 0, 0
FPU_save_area: 832, 0, 0, 0, 0, 0, 0
VNODE: 472, 0, 114408, 928, 155200, 0, 0
VNODEPOLL: 112, 0, 0, 770, 13, 0, 0
BUF TRIE: 144, 0, 3714, 102234, 9440298, 0, 0
S VFS Cache: 108, 0, 120884, 3891, 223399, 0, 0
STS VFS Cache: 148, 0, 0, 0, 0, 0, 0
L VFS Cache: 328, 0, 441, 375, 845, 0, 0
LTS VFS Cache: 368, 0, 0, 0, 0, 0, 0
NAMEI: 1024, 0, 0, 520,41296842, 0, 0
DIRHASH: 1024, 0, 934, 210, 1275, 0, 0
NCLNODE: 528, 0, 1, 13, 1, 0, 0
Mountpoints: 816, 0, 10, 70, 11, 0, 0
pipe: 744, 0, 116, 524, 24303, 0, 0
procdesc: 128, 0, 0, 0, 0, 0, 0
ksiginfo: 112, 0, 373, 4002, 16780, 0, 0
itimer: 352, 0, 0, 33, 1, 0, 0
KNOTE: 128, 0, 23, 3728, 2156120, 0, 0
socket: 696, 8386445, 245, 485, 109956, 0, 0
ipq: 56, 510703, 0, 0, 0, 0, 0
udp_inpcb: 392, 8386450, 6, 924, 98789, 0, 0
udpcb: 16, 8386663, 6, 4010, 98789, 0, 0
tcp_inpcb: 392, 8386450, 176, 784, 2934, 0, 0
tcpcb: 1024, 8386448, 176, 372, 2934, 0, 0
tcptw: 88, 27810, 0, 1125, 258, 0, 0
syncache: 160, 15375, 0, 750, 2342, 0, 0
hostcache: 136, 15370, 17, 679, 58, 0, 0
tcpreass: 40, 1021500, 0, 800, 33960, 0, 0
sackhole: 32, 0, 0, 375, 37, 0, 0
sctp_ep: 1408, 8386446, 0, 0, 0, 0, 0
sctp_asoc: 2352, 40000, 0, 0, 0, 0, 0
sctp_laddr: 48, 80012, 0, 664, 6, 0, 0
sctp_raddr: 728, 80000, 0, 0, 0, 0, 0
sctp_chunk: 136, 400026, 0, 0, 0, 0, 0
sctp_readq: 104, 400026, 0, 0, 0, 0, 0
sctp_stream_msg_out: 104, 400026, 0, 0, 0, 0, 0
sctp_asconf: 40, 400000, 0, 0, 0, 0, 0
sctp_asconf_ack: 48, 400060, 0, 0, 0, 0, 0
ripcb: 392, 8386450, 0, 30, 1, 0, 0
unpcb: 240, 8386448, 63, 1889, 8227, 0, 0
rtentry: 200, 0, 25, 475, 25, 0, 0
selfd: 56, 0, 554, 4629,51234943, 0, 0
SWAPMETA: 288, 32685042, 0, 0, 0, 0, 0
FFS inode: 168, 0, 114348, 1871, 155129, 0, 0
FFS1 dinode: 128, 0, 0, 0, 0, 0, 0
FFS2 dinode: 256, 0, 114348, 1857, 155128, 0, 0
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