[squid-users] Delay pools not working with squid 4.x , and more Question !!

[--Ahmad--]

Hi Alex thanks for info .
so i can confirm 100 % its a bug 

bec same config exactly work on 3.5

if you recommend me any thing 4.x that work with delay pools or 5.x i would be thankful ! 


and thank you very much when you answered me about SMP and delay pools .

all is clear , Looking forward to hearing that bug fixed .

Thanks a lot .

> On Sep 22, 2019, at 5:07 PM, Alex Rousskov <rousskov at measurement-factory.com> wrote:
> 
> On 9/22/19 6:25 AM, --Ahmad-- wrote:
> 
>> i tested squid 4.8 and delay pools not working with it at all .
>> i reverted back to squid 3.5.x and i had delay pools working .
> 
>> Q1- do squid 4 support delay pools ?
> 
> It should. If it does not, there is a bug somewhere.
> 
> 
>> Q2- with squid 3.5.x we have SMP about 4 childs , and we are running delay pools .
>> does that mean speed ( with all 4 instances ) is 1/1 Mbps
>> or speed ( with all 4 instances ) is 4/4  Mbps?
> 
> According to [1], delay pools are not SMP-aware yet so you are
> essentially configuring individual worker limits: Workers do not share
> their limits and pools with each other. Hence, the effective Squid
> instance limit is, very approximately, the aggregate of those configured
> individual worker limits. For example, if each worker is limited by
> 1Mbps, then the 4-worker instance may produce up to 4Mbps traffic.
> 
> In reality, since individual workers usually receive different amounts
> of traffic (especially until [2] is unblocked), the effective instance
> limit will be more than 1Mbps and less than 4Mbps.
> 
> [1] https://wiki.squid-cache.org/Features/SmpScale#What_can_workers_share.3F
> 
> [2] https://github.com/squid-cache/squid/pull/369
> 
> Alex.
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