Message 178312 - Python tracker

Message178312

Author	sbt
Recipients	asksol, brandon-rhodes, catalin.iacob, christian.heimes, cool-RR, dholth, gregory.p.smith, jnoller, mrmekon, ned.deily, neologix, numbernine, pitrou, rcoyner, sbt, vsekhar
Date	2012-12-27.19:16:40
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1356635800.28.0.777934343089.issue8713@psf.upfronthosting.co.za>
In-reply-to

Content
Numbers when running on Linux on a laptop with 2 cores + hyperthreading. RUNNING UNITTESTS: fork: real 0m50.687s user 0m9.213s sys 0m4.012s fork+exec: real 1m9.062s user 0m48.579s sys 0m6.648s forkserver: real 0m50.702s user 0m4.140s # excluding descendants sys 0m0.708s # excluding descendants LATENCY: fork: 0.0071 secs/proc fork+exec: 0.0622 secs/proc forkserver: 0.0035 secs/proc Still 4 times the cpu time and 10 times the latency. But the latency is far lower than in the VM.

Content

Numbers when running on Linux on a laptop with 2 cores + hyperthreading.

RUNNING UNITTESTS:
  fork:
    real    0m50.687s
    user    0m9.213s
    sys     0m4.012s

  fork+exec:
    real    1m9.062s
    user    0m48.579s
    sys     0m6.648s

  forkserver:
    real    0m50.702s
    user    0m4.140s        # excluding descendants
    sys     0m0.708s        # excluding descendants

LATENCY:
  fork:       0.0071 secs/proc
  fork+exec:  0.0622 secs/proc
  forkserver: 0.0035 secs/proc

Still 4 times the cpu time and 10 times the latency.  But the latency is far lower than in the VM.

History
Date	User	Action	Args
2012-12-27 19:16:40	sbt	set	recipients: + sbt, gregory.p.smith, pitrou, christian.heimes, ned.deily, jnoller, rcoyner, asksol, cool-RR, dholth, brandon-rhodes, neologix, catalin.iacob, numbernine, vsekhar, mrmekon
2012-12-27 19:16:40	sbt	set	messageid: <1356635800.28.0.777934343089.issue8713@psf.upfronthosting.co.za>
2012-12-27 19:16:40	sbt	link	issue8713 messages
2012-12-27 19:16:40	sbt	create