On Feb 1 10:50, Corinna Vinschen via Cygwin-patches wrote: > On Jan 28 15:33, Ken Brown via Cygwin-patches wrote: > > On 1/28/2021 11:07 AM, Corinna Vinschen via Cygwin-patches wrote: > > > One problem is that there are some applications in the wild which run > > > loops up to either sysconf(_SC_OPEN_MAX) or OPEN_MAX to handle open > > > descriptors. tcsh is one of them. It may slow done tcsh quite a bit > > > if the loop runs to 3200 now every time. > > > > I don't use tcsh. Is it easy to test this? > > I just checked the source. In the olden days, before the invention of > close-on-exec, tcsh closed all descriptors > 2 up to OPEN_MAX prior to > starting any executable. > > With close-on-exec this happens only at startup and after an error > occured. > > So testing should be easy: The tcsh startup may be noticably slower.
I checked this right now and I don't see a noticable, i. .e, any, difference. Corinna
