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From: igor@students.uiuc.edu (igor vladimirovich roshchin)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Swapping problems ?
Date: 29 Jan 1997 03:17:43 GMT
Organization: University of Illinois at Urbana
Lines: 67
Message-ID: <5cmfgn$5ql@vixen.cso.uiuc.edu>
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Xref: euryale.cc.adfa.oz.au comp.unix.bsd.freebsd.misc:34678
Hello!
I've got a problem with the memory management.
Swap doesn't seem to be used effectively.
(2.1.6.1)
#systat -vmstat
2 users Load 0.00 0.00 0.00 Tue Jan 28 22:02
Mem:KB REAL VIRTUAL VN PAGER SWAP PAGER
Tot Share Tot Share Free in out in out
Act 2588 508 37044 32828 9672 count
All 27188 6212 707252 648500 pages
cow Interrupts
Proc:r p d s w Csw Trp Sys Int Sof Flt 1 zfod 229 total
7 4 2 30 230 4 2 3416 wire 100 clk0 irq0
17144 act 128 rtc0 irq8
0.3%Sys 0.0%Intr 0.0%User 0.0%Nice 99.7%Idl 548 inact fdc0 irq6
| | | | | | | | | | 5868 cache wdc0 irq14
3804 free sc0 irq1
daefr 1 ep0 irq10
Namei Name-cache Proc-cache prcfr
Calls hits % hits % react
4 4 100 pdwake
pdpgs
Discs wd0 intrn
seeks 3871 buf
xfers
blks
msps
[22:02] [141] ~#top
load averages: 0.00, 0.00, 0.00 22:02:29
30 processes: 1 running, 29 sleeping
Cpu states: % user, % nice, % system, % interrupt, % idle
Mem: 17M Active, 548K Inact, 3416K Wired, 5868K Cache, 3871K Buf, 3856K Free
Swap: 225M Total, 64K Used, 225M Free
PID USERNAME PRI NICE SIZE RES STATE TIME WCPU CPU COMMAND
1574 root 33 0 372K 744K RUN 0:00 0.00% 0.00% top
596 root 18 0 712K 1084K pause 0:00 0.00% 0.00% tcsh
#swapinfo
Device 512-blocks Used Avail Capacity Type
/dev/wd0s1b 450560 0 450432 0% Interleaved
This computer hangs or reboots if I start compiling something big
(say, the kernel, or "make world")
Does anybody have any idea, why is it so ?
I think, the problem is in swap management.
Notice the discrepency between different diagnostics..
Thanks for any input on this.
IgoR
aka StR