Hey Sergey, whatever you are using for a mail client SUCKS real bad at the moment..
it's really messing up your outgoing mails.. note the mail below.... Sergey Babkin wrote:
Apr 2, 2009 01:03:48 AM, [1]peterjer...@optushome.com.au wrot= : >On 2009-Mar-30 18:45:30 -0700, Maxim Sobolev <[2]sobo...@freebsd.org> wrote: >>You don't really need to =o it on every execve() unconditionally. It >>could be done on de=and in libc, so that only when thread pass certain >>threshold, =he "common page optimization code" kicks in and does its >>open/=map/etc magic. Otherwise, "normal" syscall is performed. > >Th=s "optimisation" is premature. First step is to implement an >appro=ch that always maps (or whatever) the data and then gather some >inf=rmation about its overheads in the real world. If they are deemed >=xcessive, only then do we start looking at how to improve things. >A=d IMO, the first step would be to lazily map the page - so it's not >=mapped by default but mapped the first time any of the information in &=t;it is used. Does it make sense to even bother with lazy mapping? =fter all, this is a very minor activity compared to mapping and linking=he dynamic libc. I think the overhead won't be even noticeable. If you=lready map 200 pages, adding one more should not make much difference. -SB References 1. 3D"mailto:peterjer...@optushome.com.au"; 2. file://localhost/tmp/3D"m_______________________________________________ freebsd-curr...@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
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