freebsd 6 - amount of total visible memory is decreasing
constantly
Ilya E Veretenkin
ilyaver at mail.ru
Sun Jan 8 01:57:11 PST 2006
>> Problem: Total amount of visible memory is decreasing constantly
> [ ... ]
>> As you can see, memory which was visible using top utility decreased
>> from 3224 to 3195 Megabytes in less than 2 hours. And this process
>> will continue to the point, where swapping begins.
>> Server during this monitoring was running MySql4 + Apache1.3 under heavy
>> load.
> Pay attention to "sysctl kern.malloc" or "sysctl vm.zone" periodicly, and see
> whether some part of the kernel is leaking memory.
All seems to be OK with 'sysctl kern.malloc' and 'sysctl vm.zone':
there are no any suspiciously high values. All of kern.malloc values
in MemUse field are <=1024K. Only two: SWAP=2189K and devbuf=8003K are above 1024K
limit(but this seems to be ok too)
What is the source of information which is used by 'top' utility for
displaying memory statistics? May be, if I look into this source, I
would probably get more clear picture of what is going on?
Here is the kern.malloc output:
kern.malloc:
Type InUse MemUse HighUse Requests Size(s)
linux 10 1K - 10 64
DEVFS 9 1K - 10 16,256
atkbddev 2 1K - 2 64
DEVFS3 121 31K - 122 256
nexusdev 2 1K - 2 16
DEVFS1 111 56K - 111 512
I/O APIC 3 3K - 3 512,2048
USB 32 5K - 32 16,32,64,128,256,512
memdesc 1 4K - 1 4096
USBdev 3 2K - 9 16,512
VM pgdata 2 129K - 2 128
entropy 1024 64K - 1024 64
PCI Link 30 3K - 30 16,128
UMAHash 3 133K - 15 512,1024,2048,4096
UFS mount 12 78K - 12 512,2048,4096
UFS dirhash 378 86K - 897 16,32,64,128,256,512,2048,4096
pagedep 10 130K - 13498 128
inodedep 94 536K - 193143 256
newblk 1 1K - 998678 64,512
bmsafemap 9 1K - 23038 64
allocdirect 40 5K - 721507 128
indirdep 7 1K - 14771 64
allocindir 20 3K - 277170 128
freefrag 3 1K - 469886 64
freeblks 15 4K - 58943 256
freefile 17 2K - 113514 64
diradd 52 4K - 120056 64
mkdir 0 0K - 782 64
dirrem 16 1K - 120272 64
newdirblk 0 0K - 112 32
savedino 0 0K - 65214 256
p1003.1b 1 1K - 1 16
NFS daemon 1 1K - 1 512
syncache 1 12K - 1
hostcache 1 48K - 1
IpFw/IpAcct 3 1K - 3 64,128
in_multi 3 1K - 3 64
routetbl 148 67K - 2489 32,64,128,256,512
lo 1 1K - 1 32
arpcom 2 1K - 2 32
clone 4 16K - 4 4096
ifnet 4 7K - 4 512,2048
ifaddr 27 8K - 27 32,64,512,4096
ether_multi 12 1K - 14 16,64
BPF 3 1K - 3 128
mount 81 9K - 156 16,32,64,128,256,1024,2048
vnodes 1 1K - 1 256
VFS hash 1 512K - 1
cluster_save buffer 0 0K - 99819 64,128
vfscache 1 1024K - 1
BIO buffer 0 0K - 2004 2048
acpidev 74 5K - 74 64
soname 6 1K - 6490905 16,32,128
pcb 20 9K - 3714 16,32,64,128,4096
mbuf_tag 0 0K -156956650 32,64
ptys 7 2K - 7 256
ttys 1057 155K - 231047 128,1024
shm 1 16K - 1
sem 4 8K - 4 1024,2048,4096
msg 4 30K - 4 2048,4096
ioctlops 0 0K - 964986 16,32,64,256,512,1024,2048,4096
iov 23 3K - 96143176 16,32,64,128,256
Unitno 12 1K - 2749506 32,64
turnstiles 997 125K - 2437 128
taskqueue 6 2K - 6 256
CAM periph 1 1K - 1 256
sleep queues 997 63K - 2437 64
sbuf 0 0K - 3588 16,32,64,128,256,512,1024,2048,4096
CAM SIM 1 1K - 1 128
rman 173 22K - 604 16,128
CAM queue 3 1K - 3 16
acpisem 23 3K - 23 128
kobj 177 708K - 220 4096
CAM dev queue 1 1K - 1 128
eventhandler 31 4K - 31 64,256
devstat 22 45K - 22 32,4096
bus 886 74K - 20021 16,32,64,128,256,1024
bus-sc 74 82K - 2645 16,32,64,128,256,512,1024,2048,4096
SWAP 2 2189K - 2 64
umtx 996 125K - 2436 128
sysctl 0 0K - 63007 16,32,64
sysctloid 2898 142K - 2898 16,32,64,128
sysctltmp 0 0K - 7826 16,32,128
plimit 19 5K - 31386 256
uidinfo 6 9K - 230 64
cred 100 25K - 14498036 256
pgrp 26 4K - 4650 128
session 25 7K - 3120 256
proc 2 64K - 2
subproc 530 857K - 179051 512,4096
mtx_pool 1 12K - 1
module 294 37K - 295 128
devbuf 1030 8003K - 1032 16,32,64,128,256,512,1024,2048,4096
temp 30 282K - 43951376 16,32,64,128,256,512,1024,2048,4096
ACD driver 1 2K - 1 2048
lockf 4 1K - 930566 128
linker 68 12K - 88 16,32,64,256,512,1024,2048
AR driver 1 1K - 5 512,1024
KTRACE 100 13K - 100 128
ATA DMA 6 2K - 6 256
ithread 60 13K - 62 128,256
AD driver 4 1K - 4 32
zombie 1 1K - 178522 256
proc-args 27 2K - 70601 16,32,64,128,256
kqueue 0 0K - 4062 512,2048
kenv 53 10K - 54 16,32,64
file desc 248 181K - 309852 16,32,64,128,256,512,1024,2048,4096
sigio 1 1K - 51 64
ATA generic 5 5K - 5 1024
acpitask 0 0K - 3 64
cdev 22 6K - 22 256
acpica 1573 159K - 60729 16,32,64,128,256,512,1024
CAM XPT 10 1K - 17 32,128,512
acpi_perf 2 1K - 2 128
isadev 7 1K - 7 128
GEOM 204 43K - 1269 16,32,64,128,256,512,1024,2048,4096
pfs_nodes 49 7K - 49 128
NTFS nthash 1 512K - 1
--
Ñ óâàæåíèåì,
Ilya mailto:ilyaver at mail.ru
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