On Wed, Feb 04, 2004 at 01:14:12AM -0500, Jon LaBadie wrote:
> On Wed, Feb 04, 2004 at 12:10:17AM +0100, Josef Wolf wrote:

> > top - 23:19:51 up 5 days, 12:08, 23 users,  load average: 0.00, 0.08, 0.17
> > Tasks: 141 total,   1 running, 137 sleeping,   0 stopped,   3 zombie
> > Cpu(s):   1.9% user,   2.2% system,   0.0% nice,  95.9% idle
> > Mem:    514224k total,   475768k used,    38456k free,    50224k buffers
> > Swap:        0k total,        0k used,        0k free,   182920k cached
                 ^^
                Argh!

Me little idiot forgot to mkswap on the swap partition the last time I
changed my disk configuration. Therefore the swapon command failed to add
swap space to the system (which I clearly should have noticed earlier).

As soon as I added swap space, the system is pretty responsive again and even
throughput for the copy operation went up to 19MB/s.

> My eye focused on something else.  On an "idle" system you had 38MB free
> of 512MB total.  During copying that dropped to just 4MB free.  My Solaris
> system also has 512MB total, but 120MB free when "idle".  Doing a copy
> such as you report only dropped it by about 25MB.  I saw little degradation
> in interactive performance.  This may be the case where the old saw "add
> more memory" may be a valid recommendation.

Sometimes even adding virtual memory helps :)

Thanks a lot and sorry for the confusion!

-- 
-- Josef Wolf -- jw AT raven.inka DOT de --