Re: [SQU] 2.4, diskd, FreeBSD seems a bit slow

From: Jon Mansey <[email protected]>
Date: Tue, 6 Feb 2001 10:35:32 -0800

So you're getting around 32ms HIT times. Heres one of my 2.3 boxes, I
see around 23ms here using UFS.

Median Service Times (seconds) 5 min 60 min:
         HTTP Requests (All): 0.05951 0.09219
         Cache Misses: 0.20843 0.20843
         Cache Hits: 0.02317 0.02317
         Near Hits: 0.12783 0.16775
         Not-Modified Replies: 0.01235 0.01648
         DNS Lookups: 0.01331 0.01046
         ICP Queries: 0.00000 0.00000

Maybe the the median access time is a little longer but it supports
higher load?

jm

>This is from one of my Diskd boxes. Its P3 running FreeBSD 4.0 with 768
>MB of RAM and 6 x 4096 8 256 cache dirs. Your boxes are running FreeBSD
>right?
>
>
>Awais
>
>Median Service Times (seconds) 5 min 60 min:
> HTTP Requests (All): 0.80651 1.00114
> Cache Misses: 1.46131 1.54242
> Cache Hits: 0.03241 0.03241
> Near Hits: 1.54242 1.54242
> Not-Modified Replies: 0.01035 0.01309
> DNS Lookups: 0.02336 0.03696
> ICP Queries: 0.00000 0.00000
>
>Jon Mansey wrote:
>
>> Median Service Times (seconds) 5 min 60 min:
>> HTTP Requests (All): 0.18699 0.18699
>> Cache Misses: 0.19742 0.20843
>> Cache Hits: 0.05951 0.05046
>> Near Hits: 0.15888 0.16775
>> Not-Modified Replies: 0.04519 0.04047
>> DNS Lookups: 0.02231 0.02336
>> ICP Queries: 0.00000 0.00000
>>
>> I thought diskd was supposed to improve disk access times?
>>
>> I think 50-60ms for cache hits is quite a bit slower than the 2.3
>> boxes I have running, they average 20ms.
>>
>> What times are others seeing?
>>
>> jm
>>
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>
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jon@interpacket.net                          Chief Science Officer
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Received on Tue Feb 06 2001 - 11:43:10 MST

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