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SubjectRe: 2.4.10 much better than previous 2.4.x :-)
Rik van Riel <riel@conectiva.com.br>, on Mon Sep 24, 2001 [10:35:53 PM] said:
>
> If you have the time, could you also test 2.4.9-ac15 ?
>
> (The -ac VM has basically branched off at 2.4.7 and has
> evolved quite a bit since ... last week I fixed a stupid
> page aging bug and things should be a lot better than
> before now)
>
> regards,
>
> Rik

K6-333 128M ram
2.4.9-ac15 my impression: Well, running mutt with 80M
folder open, desktop with several aterms and netscape with a few
windows open, I started building a kernel in one term, and a
'find / -type f -exec md5sum {}' in another, then started reading
the mail, and occasionally jumping around the virtual desktop,
exposing netscapes... (this is pretty much my normal working
load, except for the find.)
I thought it worked very well; exposed netscapes were
either just there, or drew almost instantly. (other kernels I
have used, under the same load would usually take quite a bit
longer for exposed netscape to draw itself.) 'interactiveness'
seemed good.

Then, I read a post in this thread about swap being
funny. I noticed that no swap was being reported as used all
during my test. So, I forced the issue with an endless malloc.
Very quickly, the system seems to freeze, and the disk is
yammering away. I was waiting for the OOM killer to kick in,
but it never did. <alt><sysrq> works well, and I used it to print
out the Mem stats after several minutes. Eventually, I used
sysrq to sync and kill (couldnt get it to reBoot, though).
Im not complaining-- Im just curious why no OOM killing,
and the Mem stats report 337148k swap free (I have 337168k).
Does this memmory report look proper for a machine thrashing
itself to death from endless mallocs?

Paul
set@pobox.com

SysRq : Show Memory
Mem-info:
Free pages: 1512kB ( 0kB HighMem)
( Active: 63, inactive_dirty: 172, inactive_clean: 0, free: 378 (351 702 1053) )
1*4kB 1*8kB 1*16kB 1*32kB 1*64kB 1*128kB 1*256kB 0*512kB 0*1024kB 0*2048kB = 508kB)
25*4kB 3*8kB 1*16kB 1*32kB 1*64kB 0*128kB 1*256kB 1*512kB 0*1024kB 0*2048kB = 1004kB)
= 0kB)
Swap cache: add 5, delete 5, find 0/0
Page cache size: 79
Buffer mem: 156
Ramdisk pages: 0
Free swap: 337148kB
32764 pages of RAM
0 pages of HIGHMEM
1038 reserved pages
115 pages shared
0 pages swap cached
0 pages in page table cache
Buffer memory: 624kB
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