Re: [squid-users] is "nice" useful?

On Monday 23 September 2013 at 18:01:48, Alfredo Rezinovsky wrote:

> I have a heavy loaded squid and I noticed high latency.

Please specify "heavy loaded" and "high latency":

 - what spec machine is Squid running on? (CPU cores, speed, amount of RAM
are the most important factors, also disk interface type might be important)

 - how many connections per second is it servicing?

 - what bandwidth is going through the machine?

 - what cache hit ratio are you getting?

 - how are you measuring latency?

 - what do you regard as "high" (and what did you previously have which seemed
to be "low")?

> using workers it seems a little faster
>
> I dont have 100% CPU load and iowait is also low. But clients browse
> faster when I disable the tproxy and let them pass bridged.

How are you measuring the speed difference, and what difference does it actually
make?

> Running squid with a lower "nice" value should improbe the latency?

What else is running on the machine?

Regards,

Antony.

-- 
Under UK law, no VAT is charged on biscuits and cakes - they are "zero rated".  
Chocolate covered biscuits, however, are classed as "luxury items" and are 
subject to VAT.  McVitie's classed its Jaffa Cakes as cakes, but in 1991 this 
was challenged by Her Majesty's Customs and Excise in court.
The question which had to be answered was what criteria should be used to 
class something as a cake or a biscuit.  McVitie's defended the classification 
of Jaffa Cakes as a cake by arguing that cakes go hard when stale, whereas 
biscuits go soft.  It was demonstrated that Jaffa Cakes become hard when stale 
and McVitie's won the case.
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