Re: Two identical systems, radically different performance
От | Andrea Suisani |
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Тема | Re: Two identical systems, radically different performance |
Дата | |
Msg-id | 507C3217.6040905@opinioni.net обсуждение исходный текст |
Ответ на | Re: Two identical systems, radically different performance (Claudio Freire <klaussfreire@gmail.com>) |
Список | pgsql-performance |
On 10/15/2012 05:28 PM, Claudio Freire wrote: > On Mon, Oct 15, 2012 at 12:24 PM, Andrea Suisani <sickpig@opinioni.net> wrote: >>> It does prove they're not equivalent though. >>> >> >> sure you're right. >> >> It's just that my bet was on a higher throughput >> when HT was isabled from the BIOS (as you stated >> previously in this thread). > > Yes, mine too. It's bizarre. If I were you, I'd look into it more > deeply. It may be a flaw in your test methodology (maybe you disabled > the wrong cores?). this is the first thing I thought after looking at the results but I've double-checked cores topology (core_id, core_siblings_list end friends under /sys/devices/system/cpu/cpu0/topology) and I seems to me that I've disabled the right ones. It could be that I've messed up with something else... > If not, it would be good to know why the extra TPS > to replicate elsewhere. definitely I will try to understand the probable causes performing other tests... any hints are welcome :) >
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