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Re: More details about the tmux 2.0 regression

On Jun  8 14:41, Corinna Vinschen wrote:
> On Jun  6 12:58, Äsmail DÃnmez wrote:
> > Hi,
> > 
> > I had a nice discussion with tmux maintainers over at
> > about the tmux 2.0 regression
> > on Cygwin.
> > 
> > Long story short, tmux is trying to read /proc/<pid>/cmdline and
> > /proc/<pid>/cwd for various reasons and for non-Cygwin programs this
> > is quite slow. You can reproduce this easily run cmd.exe inside bash
> > and try to
> > 
> > cat /proc/<pid of cmd.exe>/cmdline
> Good catch!
> The problem here was that this functionality is very Cygwin centric.  It
> tries to call into the process itself to fetch the information.
> E.g, assuming you have some /proc/1234, it tries to fetch the information
> by sending a request to process 1234 and then waits for that process
> setting a semaphore.  A non-Cygwin process will obviously fail to do so,
> not knowing about the method at all.
> I fixed that in the Cygwin git repo and it seems to work much better now
> to run native tools inside tmux with this change.
> I'll upload a developer snapshot on later
> today.

Snapshot is up.


Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Maintainer                 cygwin AT cygwin DOT com
Red Hat

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