linux-kernel - Re: [RFC PATCH 0/2] sched: simplify the select_task_rq

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <1357985943.6796.55.camel@marge.simpson.net>
Date:	Sat, 12 Jan 2013 11:19:03 +0100
From:	Mike Galbraith <bitbucket@...ine.de>
To:	Michael Wang <wangyun@...ux.vnet.ibm.com>
Cc:	linux-kernel@...r.kernel.org, mingo@...hat.com,
	peterz@...radead.org, mingo@...nel.org, a.p.zijlstra@...llo.nl
Subject: Re: [RFC PATCH 0/2] sched: simplify the select_task_rq_fair()


aim7 compute

Tasks    jobs/min  jti  jobs/min/task      real       cpu
    1      440.41  100       440.4070     13.76      3.65
    5     1923.81   99       384.7619     15.75     26.17
   10     4223.00   99       422.2997     14.35     41.66
   20     7632.24   87       381.6121     15.88     55.85
   40    16378.38   97       409.4595     14.80    169.63
   80    32934.78   99       411.6848     14.72    364.50
  160    63789.47   98       398.6842     15.20    398.55
  320   121200.00   98       378.7500     16.00    471.10
  640   213803.75   96       334.0684     18.14    640.05
 1280   323334.72   93       252.6053     23.99   1106.92
 2560   425846.83   87       166.3464     36.43   2097.59

+simplify select_task_rq_fair()

Tasks    jobs/min  jti  jobs/min/task      real       cpu
    1      441.37  100       441.3693     13.73      3.71
    5     1861.18   99       372.2359     16.28     28.87
   10     2777.27   99       277.7269     21.82     93.90
   20     4069.85   83       203.4923     29.78    140.40
   40     6500.40   69       162.5101     37.29    355.66
   80    31338.07   96       391.7259     15.47    316.10
  160    63207.30   98       395.0456     15.34    405.22
  320   122501.58   96       382.8174     15.83    450.57
  640   219863.95   91       343.5374     17.64    591.74
 1280   333339.06   84       260.4211     23.27   1045.13
 2560   428315.85   79       167.3109     36.22   2075.88

Hm, low end takes a big hit.


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/