Re: 2.2.18 vanilla on SMP, latency WORKAROUND

From: Mario Vanoni (vanonim@dial.eunet.ch)
Date: Tue Dec 12 2000 - 17:12:58 EST


Mario Vanoni wrote:
>
> Same latencies as 2.2.16 and 2.2.17 vanilla,
> over 75 seconds to wait on an other screen!
> And top(1) on a serial VT510 freezes.
>
> Machine loaded with 2 setiathome and
> Doug Ledford's memtest.
>
> ASUS P2B-DS Dual PIII550 1024MB memory,
> only SCSI devices (no IDE!).
>
> Andrea Arcangeli's ..17pre6aa2, ..18pre17aa1
> and ..18pre21aa2 reduced the latency <2 secs.
>
> Regards
> Mario Vanoni
>
> PS If necessary, cc, not in lkml!

Patched with Andrea's 2.2.18aa1, with more loads,
latency always minor 1-2 seconds.
Impossible to reproduce 75 seconds!

Mario
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