Re: [PATCH 2/4] ipc/sem: seperate wait-for-zero and alter tasks intoseperate queues

From: Manfred Spraul
Date: Sat Jun 01 2013 - 07:52:17 EST

Hi all,

On 06/01/2013 11:20 AM, Manfred Spraul wrote:

- osim [i.e.: with reschedules] is much slower: around 21 us per schedule.
Perhaps the scheduler didn't pair the threads optimally: intra-cpu reschedules
take around 2 us on my i3, inter-cpu reschedules around 16 us.

I mixed up numbers.
osim reports around 1.6 us for the 64-thread system.
It is still odd that it is only factor 1.5 facter than my 4-thread i3, but at least it is not slower.

Anyway: I have attached the table of all results that I have so far.


Attachment: Eval-ipc.ods
Description: application/vnd.oasis.opendocument.spreadsheet