Re: [squid-users] Using Solid State drives for Performance

From: Henrik Nordstrom <>
Date: Wed, 28 Mar 2001 12:21:38 +0200

How large object workingset in relation to your RAM size have you been
testing with?

All my tests have shown a great dependency on the disk service time..
(which is in proportion to the seek time and workload)

Henrik Nordstrom
Squid Hacker
David Rumble wrote:
> Hello
> As Squid is an I/O intensive app, I have been working with a major user of
> Squid running on Linux RH 2.2.16.(bespoke). Hardware no name 512MB, single
> p2 300. Two test machines have been setup, One with a platypus Qikdrive
>  (SSD 2GB capacity, upto 10MBps/15k Tps/Access times - 3/10
> MICROSECONDS. The other with 2GB Scsi HDD.
> After considerable testing there is no performance gain as far as HIT access
> times are concerned. According to the drive spec/requestsPs equation one
> would expect a significant improvement. (requests/sec1000000/access time).
> Cpu and Bandwidth are within tolerances.
> Does Squid use DISKD to cache to RAM? Are there any configs that need
> changing? Any advice,comments would be greatly appreciated.
> Regards
> David Rumble
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Received on Wed Mar 28 2001 - 03:20:18 MST

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