Messages in this thread | | | From | "Martin Eriksson" <> | Subject | Re: IDE is still crap.. or something | Date | Fri, 23 Nov 2001 20:59:18 +0100 |
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----- Original Message ----- From: "Marcelo Tosatti" <marcelo@conectiva.com.br> To: "Martin Eriksson" <nitrax@giron.wox.org> Cc: "lkml" <linux-kernel@vger.kernel.org> Sent: Friday, November 23, 2001 7:27 PM Subject: Re: IDE is still crap.. or something
> > Any previous kernel gave you good performance ?
No.. not really. Except -ac kernels and kernels with the preempt patch.
I'll just clarify: The problem is not that hard disk operations gets slow (I can understand *that*, as it's a MW-DMA2 disk and one UDMA33 running ext3), instead the real problem is that the system as a *whole* gets painfully slow. Whilst copying a 500MB file, it takes ~6-8 seconds to start a new ssh session from my windows comp to my linux server, compared to <1 second when running preempt/ac kernels.
_____________________________________________________ | Martin Eriksson <nitrax@giron.wox.org> | MSc CSE student, department of Computing Science | Umeå University, Sweden
> > On Fri, 23 Nov 2001, Martin Eriksson wrote: > > > Well, just wanted to tell you that 2.4.15 still slows down to a crawl when > > copying a 500MB file between two hard drives (running ext3). I have tried > > any of the -c -u -m -W settings in hdparm. I even applied the 2.4.14 IDE > > patch (after fixing the rejects) but no go. > > > > Even iptables is affected, because it takes forever to surf the internet > > from my behind-linux-firewall windows computer. > > > > I'm right now trying to apply the preemptive-kernel patch to 2.4.15 but it > > had some strange rejects so it will be exciting to see if it works. I get > > good response from the -ac kernel series though.
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