From: "Albrecht Dreß" <ad@mpifr-bonn.mpg.de>
To: bh40@calva.net, LinuxPPC-Dev Liste <linuxppc-dev@lists.linuxppc.org>
Subject: Re: Bogus interrupts: test fix
Date: Thu, 07 Jan 1999 15:42:00 +0100 [thread overview]
Message-ID: <3694C7B8.EF70DF9C@mpifr-bonn.mpg.de> (raw)
In-Reply-To: 19990107143718.019579@mail.mipsys.com
Benjamin Herrenschmidt wrote:
>
> I've updated the 2.2-pre4 test kernel on my web page, it contains a test
> fix for the bogus interrupt problem. Please try it and give me feedback.
Really good! The improvement of ide performance is impressive. The slowdown
effect has gone during ide _reads_ [= almost "normal" response times compared to
Intel/Linux systems], but is still present during ide _writes_ (I tested it with
a program which writes or reads 200 MB with simple read/write calls, so I have
enough time for a login on a 2nd console). BTW, the read transfer speed given by
hdparm (PB G3/300, IBM DYLA 28100) is 7.08 MB/s.
The bogus interrupts are gone _completely_; still 0 after ~1 hour with a lot of
io. LST interrupts are == 1 (one) after the same time.
Yours, and THANKS for your work,
Albrecht.
--
+-----------------------------------------------------------------------------+
| Dr.-Ing. Albrecht Dre\3 ---- |
| Max-Planck-Institut f"ur Radioastronomie |\ / /o o\ |
| Technische Abt. Optische Interferometrie | \ / | / | |
| Auf dem H"ugel 69 | \ | \ ---/ |
| D-53121 Bonn (Germany) ------------+------+------------------- |
| | / | |
| Phone (+49) 228 525 319 | / / |
| Fax (+49) 228 525 411 |/ / |
| Mail ad@mpifr-bonn.mpg.de |
+-------------- electrical engineers do it with less resistance --------------+
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prev parent reply other threads:[~1999-01-07 14:42 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
1999-01-07 13:37 Bogus interrupts: test fix Benjamin Herrenschmidt
1999-01-07 14:42 ` Albrecht Dreß [this message]
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