Re: [squid-users] Recommend for hardware configurations

Squid is IO and memory bounded, not cpu bounded. Use the CPU money to
buy more RAM/disks

mike

At 12:09 PM 7/5/2008, Marcus Kool wrote:

>Michel wrote:
>>>On tor, 2008-07-03 at 12:04 +0800, Roy M. wrote:
>>>
>>>>We are planning to replace this testing server with two or three
>>>>cheaper 1U servers (sort of redundancy!)
>>>>
>>>>Intel Dual Core or Quad Core CPU x1 (no SMP)
>>>Squid uses only one core, so rather Dual core than Quad...
>>I am not understanding why you keep suggesting single core as preferred cpu
>>even if squid's core is actually not multi-thread capable a faster
>>cpu is better -
>>there are also other things running on a machine so a smp machine
>>ever is a benefit
>>to overall performance
>>modern OS also should give squid's aufs threading benefits but I am
>>not totally
>>sure about your design here but at least diskd when running several
>>diskd processes
>>is getting benefits from multicore cpus - and a lot and if you do
>>not believe it
>>set up squid/disk on a 8-core machine and compare with 1|2|4|8 or
>>more diskds to
>>your single-core-cpu-thing and measure it, in fact you do not even
>>measure it, you
>>can see it and smell it ...
>>and at the buttom line more power more performance so there is no
>>way a single core
>>runs faster than a dual or quad core on a modern OS, not even get close to it
>
>I agree. To give a little bit more specific advise:
>Squid is mostly single-threaded and in large environments needs a
>lot of CPU power.
>So I recommend to buy a system with at least 2 cores and maximize CPU cache
>and memory speed (use 2 or 4 DIMMs) to get the most of the raw CPU power.
>
>For example, go for a Dell R300 with Quad-core 2.66 GHz, 6 MB cache
>for a good price
>(EUR 749 ex VAT base price). Dell is just an example, I am not affiliated.
>
>-Marcus
>
>>michel
>>
>>
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Received on Sat Jul 05 2008 - 19:47:56 MDT