[lkml]   [2002]   [Feb]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: Disk-I/O and % system (2.4.18-pre9)
Heinz Diehl wrote:
> Downgrade to 2.4.18-pre8 and use Michael Cohen's patch from
> "",

That doesn't help. I tried 2.4.16 with Debian modifications, said
kernel patched to 2.4.18-pre9, stock 2.4.17, stock 2.4.18-pre9 and
2.4.18-pre8-mjc with preempt and lockbreak, and all behave alike.

On a plain ext2-filesystem on a primary partition I get (with -mjc):

During the sync the system is extremly sluggish, and once during my
tests it froze completely (it did still return pings with a normal
speed) so that I had to press reset.

The same operations on a slower computer running 2.2.20 are consideraby

$ time tar -xzf linux-2.4.17.tar.gz; time sync

real 0m7.716s
user 0m5.430s
sys 0m2.110s

real 0m6.332s
user 0m0.000s
sys 0m0.120s

> Latency in stock 2.4.17/18-pre kernels is well known :\

this looks like more than a latency issue :-(.

Yours, Florian Hars.
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2005-03-22 13:24    [W:0.063 / U:22.748 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site