On 3/16/2020 7:34 PM, Mark Geisert wrote: > Mark Geisert wrote: >> Eliot Moss wrote: >>> >>> Dear cygwin-ers -- >>> >>> Something I had asked about a while ago was the absence os taskset in cygwin's >>> util-linux. At the time, it was pointed out that the necessary get/set >>> affinity library/system calls were not yet supported. These were added a >>> while ago, so it would seem that taskset ought to work. In fact, I think >>> someone got it going on their own. Can we add it to util-linux now, >>> officially? I think this was intended but perhaps was overlooked or >>> something. >> >> Report noted; thanks. A solution is being worked. > > There's been no forward progress on this. If you're comfortable getting the util-linux source > package through Cygwin setup*.exe, you can follow the steps shown in > https://cygwin.com/pipermail/cygwin-apps/2020-March/039855.html to build (with cygport) a local copy > of util-linux that includes a taskset.exe you can move into /usr/local/bin, for example. > > You might try that route if you're up for it. Feel free to ask questions here if you hit a snag. > HTH,
Thank you, Mark. I decided to give it a try and got some distance, but hit a snag. First, I had to change configure.ac to add control to disable ionice (Cygwin does not support a required syscall) while still trying to build taskset. Previously taskset and ionice (and one other program) were controlled by the single --enable-schedutils. Now, including sched.h does not provide the prototypes for sched_getaffinity, etc. I found a previous post that suggests we need to do -D_GNU_SOURCE for it to work. I am not sure of the best place to stick that, but I will see about maybe a one line patch to taskset.c or something. Regards - Eliot -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
