Author neologix
Recipients Aaron.Sherman, giampaolo.rodola, gregory.p.smith, neologix, pitrou, vstinner
Date 2011-02-27.15:05:22
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> Aaron Sherman <> added the comment:
> "That's why I asked for absolute numbers for the overhead difference."
> Did you not follow the link in my first post? I got pretty detailed, there.

By the way, strace has a '-T' flag that can be used to measure the
time spent in syscalls (but for a mmap/mremap/munmap it won't be

> However, I do think that doing the performance testing before deprecating
> the previous interface would have been a good idea...

Once again: subprocess.Popen is actually faster than os.pipe to create
a subprocess. Just don't pass shell=True. Unless you're spawning shell
scripts, but in that case subprocess' overhead is definitely not
biggest problem.
Date User Action Args
2011-02-27 15:05:23neologixsetrecipients: + neologix, gregory.p.smith, pitrou, vstinner, giampaolo.rodola, Aaron.Sherman
2011-02-27 15:05:22neologixlinkissue11314 messages
2011-02-27 15:05:22neologixcreate