On Wed, Nov 15, 2006 at 10:17:59PM -0500, Charles Wilson wrote:
>Christopher Faylor wrote:
>
>>Fully implementing posix_spawn is quite a bit of work although I did
>>tell Linus Torvalds that I'd look into implementing it in Cygwin
>>eventually (it would make git-on-cygwin faster).
>>
>>I have a pat
Eric Blake byu.net> writes:
> Loic Grenie matapp.unimib.it> writes:
>
>> That intermediate sh invocation can probably be slightly streamlined
>> by doing something similar to
>>
>> sprintf(cmd, "(%s) >&%d %d>&- %d>&-", program, pdes[1], pdes[0], pdes[1]);
>> pid = spawnl(_P_NOWAIT, _PATH_B
Christopher Faylor wrote:
Fully implementing posix_spawn is quite a bit of work although I did
tell Linus Torvalds that I'd look into implementing it in Cygwin
eventually (it would make git-on-cygwin faster).
I have a patch in my sandbox which implements a more lightweight
approach for popen us
Loic Grenie matapp.unimib.it> writes:
> That intermediate sh invocation can probably be slightly streamlined
> by doing something similar to
>
> sprintf(cmd, "(%s) >&%d %d>&- %d>&-", program, pdes[1], pdes[0], pdes[1]);
> pid = spawnl(_P_NOWAIT, _PATH_BSHELL, "sh", "-c", cmd, NULL);
Nope.
Eric Blake byu.net> writes:
> Eric Blake byu.net> writes:
>
> > > else
> > > sprintf(cmd, "sh -c '%s' %d>&-", program, pdes[1])
> > > }
> > > pid = spawnl(_P_NOWAIT, _PATH_BSHELL, "sh", "-c", cmd, NULL);
> >
> > Why are you going through two levels of sh? That seems like a waste t
Linda Walsh wrote:
Loic Grenie wrote:
On Tue Nov 14 15:53:36 2006, Eric Blake ([EMAIL PROTECTED] ) wrote:
And admitting that your changes are untested is not a good sign for
getting it approved.
I'm not really "admitting", I am just expliciting that the patch is
untested. I do
On Wed, Nov 15, 2006 at 04:18:10PM +, Eric Blake wrote:
>Eric Blake byu.net> writes:
>>> else
>>> sprintf(cmd, "sh -c '%s' %d>&-", program, pdes[1])
>>> }
>>> pid = spawnl(_P_NOWAIT, _PATH_BSHELL, "sh", "-c", cmd, NULL);
>>
>Why are you going through two levels of sh? That seems
Eric Blake byu.net> writes:
> > else
> > sprintf(cmd, "sh -c '%s' %d>&-", program, pdes[1])
> > }
> > pid = spawnl(_P_NOWAIT, _PATH_BSHELL, "sh", "-c", cmd, NULL);
>
> Why are you going through two levels of sh? That seems like a waste to
> me; the whole idea of using spawn is to
I tried your program as is:
~/test> cygthrash
0.000 Before std
0.781 After std
0.828 Result: Tue Nov 14 20:51:52 PST 2006
0.828 After close std
0.000 Before new
0.015 After new
0.062 Result: Tue Nov 14 20:51:52 PST 2006
0.062 After close new
0.000 Before std
0.766 After std
0.797 Resul
On Tue Nov 14 15:53:36 2006, Eric Blake ([EMAIL PROTECTED] ) wrote:
> According to Loic Grenie on 11/14/2006 4:12 AM:
>>The subjects says it all: when a process has a large memory space,
>> a popen() triggers a long disk thrashing. The result can clearly be
>> seen iwth the allegated cygtha
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According to Loic Grenie on 11/14/2006 4:12 AM:
>The subjects says it all: when a process has a large memory space,
> a popen() triggers a long disk thrashing. The result can clearly be
> seen iwth the allegated cygtharsh program (running with
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