kswapd kernel 2.4.9

kswapd kernel 2.4.9

[Andre Margis]

I'm running kernel 2.4.9 under a DELL 8450 with 8xP-III  and 10GB RAM. 
Yesterday a run a BIG   I/O, and when this process run, my cached goes to 9GB 
and the kswapd is using 100% of one cpu after that.

my /proc/meminfo

        total:    used:    free:  shared: buffers:  cached:
Mem:  1957650432 1946705920 10944512        0 392224768 1218093056
Swap: 1073733632   684032 1073049600
MemTotal:     10300376 kB
MemFree:         10688 kB
MemShared:           0 kB
Buffers:        383032 kB
Cached:        9577652 kB
SwapCached:        500 kB
Active:        3328980 kB
Inact_dirty:   6628180 kB
Inact_clean:      4088 kB
Inact_target:        8 kB
HighTotal:     9568256 kB
HighFree:         3948 kB
LowTotal:       732120 kB
LowFree:          6740 kB
SwapTotal:     1048568 kB
SwapFree:      1047900 kB


This is normal?



Thank's



Andre

Re: kswapd kernel 2.4.9

[cwright]

> I\'m running kernel 2.4.9 under a DELL 8450 with 8xP-III  and 10GB RAM. 
> Yesterday a run a BIG   I/O, and when this process run, my cached goes to 
9GB 
> and the kswapd is using 100% of one cpu after that.

did it stay at 100%, or did it ease up slightly afterward?

I have noticed a similar problem with ancient kernels (2.0.0) and not quite 
as ancient one (2.2.19) where certain applications cause all your physical 
ram to be used, then all the cache.  after its all used (for some mystery 
purpose?) it goes back to normal.  maybe my boxes are just flukes though

        chris

Re: kswapd kernel 2.4.9

[Andre Margis]

Em Qua 03 Out 2001 10:22, cwright@softpixel.com escreveu:
> > I\'m running kernel 2.4.9 under a DELL 8450 with 8xP-III  and 10GB RAM.
> > Yesterday a run a BIG   I/O, and when this process run, my cached goes to
>
> 9GB
>
> > and the kswapd is using 100% of one cpu after that.
>
> did it stay at 100%, or did it ease up slightly afterward?
>
> I have noticed a similar problem with ancient kernels (2.0.0) and not quite
> as ancient one (2.2.19) where certain applications cause all your physical
> ram to be used, then all the cache.  after its all used (for some mystery
> purpose?) it goes back to normal.  maybe my boxes are just flukes though
>
>         chris
>
I don't reboot the machine and the kswapd stay 100% all the time


Andre