On Thursday 16 June 2005 08:07, Dan Lund wrote:
> Blaisorblade wrote:
> >On Thursday 16 June 2005 02:27, Dan Lund wrote:
> >>I'm having a problem that I need a little advice on.
> >>I'm running a guest kernel 2.4.31 on a 2.6.11 host with the skas3v8
> >>patch installed.
> >>The host is a IBM xSeries 335 with a 2.8 Ghz dual processor, 4Gb of RAM
> >>installed.
> >>
> >>I'm running a tmpfs of 256mb, and a memlimit of 256mb on the instance.
> >>Here's the situation, when I scp across to the machine a large number of
> >>files "scp -r /root/* [EMAIL PROTECTED]:/root" it seems to hang for a little
> >>bit... the console is totally unresponsive for 10 or so seconds at a
> >>time. (sometimes 1 - 2 mins) and the scp transfer is stalled.
> >>
> >>
> >>
> >>
> >>
> >>The thing that bothers me is that the bridge I've created has 397
> >>overruns out of 157585 RX and 692311 TX packets.
> >
> >I.e.? You mean the net is under-used?
> >Using synchronous UBD (CONFIG_BLK_DEV_UBD_SYNC)? That would generate the
> >slowdown.
> >
> >Turning it off and replacing ubd0= with ubd0s= gives the same safety
> > without this big artificial slowdown (search for "bonnie++" in the
> > archives to find a deep discussion of this issue).
> >
> >On my homepage, the recent -bs2 prereleases contain the backport of the
> > fix I included in 2.6.
>
> Thank you,
> I'll check that out tomorrow when I get in, and turn off synchronous
> UBD. Would this pause the console itself, also?
No process inside UML would continue to run, not even bash, yes; if you talk
about the xterm you see, that is a process running on the host, so it should
keep running (and updating the displayed images).
--
Inform me of my mistakes, so I can keep imitating Homer Simpson's "Doh!".
Paolo Giarrusso, aka Blaisorblade (Skype ID "PaoloGiarrusso", ICQ 215621894)
http://www.user-mode-linux.org/~blaisorblade
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