Re: [lazarus] Something like SetThreadAffinityMask for Unix/Linux?
Sorry for asking, what is FPC's tmt1 ? -Marco 2008/2/4, Mark Morgan Lloyd [EMAIL PROTECTED]: I wonder whether it would be possible to patch affinity support into the underlying TThread object? OTOH I'm currently looking at FPC's tmt1 running under Linux on a 14-processor system and I can see it being spread fairly evenly, so this is getting pretty specialist. Micha Nelissen wrote: Marco Alvarado wrote: I'm using SetThreadAffinityMask() on Windows to set the processor for a given TThread object. What can I use on Linux? On linux you could use sched_setaffinity, but I don't think fpc has wrapped that yet. Linux man page says it's linux specific. -- Mark Morgan Lloyd markMLl .AT. telemetry.co .DOT. uk [Opinions above are the author's, not those of his employers or colleagues] _ To unsubscribe: mail [EMAIL PROTECTED] with unsubscribe as the Subject archives at http://www.lazarus.freepascal.org/mailarchives _ To unsubscribe: mail [EMAIL PROTECTED] with unsubscribe as the Subject archives at http://www.lazarus.freepascal.org/mailarchives
Re: [lazarus] Something like SetThreadAffinityMask for Unix/Linux?
Marco Alvarado wrote: Sorry for asking, what is FPC's tmt1 ? -Marco 2008/2/4, Mark Morgan Lloyd [EMAIL PROTECTED]: I wonder whether it would be possible to patch affinity support into the underlying TThread object? OTOH I'm currently looking at FPC's tmt1 running under Linux on a 14-processor system and I can see it being spread fairly evenly, so this is getting pretty specialist. Micha Nelissen wrote: Marco Alvarado wrote: I'm using SetThreadAffinityMask() on Windows to set the processor for a given TThread object. What can I use on Linux? On linux you could use sched_setaffinity, but I don't think fpc has wrapped that yet. Linux man page says it's linux specific. tmt1 is part of the test suite when FPC (Free Pascal, the compiler that underlies Lazarus) is built. Specifically, it tests threading and was broken until comparatively recently on SPARC and possibly some other non-x86 platforms. I'd fired a big Sun up to specifically to check something related to that program, so it was obviously no effort to look at the CPU usage after noticing your query. Apologies to everybody for the earlier top-posting. I alternate between environments where the different conventions are appropriate. -- Mark Morgan Lloyd markMLl .AT. telemetry.co .DOT. uk [Opinions above are the author's, not those of his employers or colleagues] _ To unsubscribe: mail [EMAIL PROTECTED] with unsubscribe as the Subject archives at http://www.lazarus.freepascal.org/mailarchives
Re: [lazarus] Something like SetThreadAffinityMask for Unix/Linux?
I wonder whether it would be possible to patch affinity support into the underlying TThread object? OTOH I'm currently looking at FPC's tmt1 running under Linux on a 14-processor system and I can see it being spread fairly evenly, so this is getting pretty specialist. Micha Nelissen wrote: Marco Alvarado wrote: I'm using SetThreadAffinityMask() on Windows to set the processor for a given TThread object. What can I use on Linux? On linux you could use sched_setaffinity, but I don't think fpc has wrapped that yet. Linux man page says it's linux specific. -- Mark Morgan Lloyd markMLl .AT. telemetry.co .DOT. uk [Opinions above are the author's, not those of his employers or colleagues] _ To unsubscribe: mail [EMAIL PROTECTED] with unsubscribe as the Subject archives at http://www.lazarus.freepascal.org/mailarchives
Re: [lazarus] Something like SetThreadAffinityMask for Unix/Linux?
Mark Morgan Lloyd wrote: I wonder whether it would be possible to patch affinity support into the underlying TThread object? OTOH I'm currently looking at FPC's tmt1 running under Linux on a 14-processor system and I can see it being spread fairly evenly, so this is getting pretty specialist. Indeed, Linux scheduling is quite good (much better than e.g. Windows which seems to move processes back and forth all the time between processors). Micha _ To unsubscribe: mail [EMAIL PROTECTED] with unsubscribe as the Subject archives at http://www.lazarus.freepascal.org/mailarchives
Re: [lazarus] Something like SetThreadAffinityMask for Unix/Linux?
Marco Alvarado wrote: I'm using SetThreadAffinityMask() on Windows to set the processor for a given TThread object. What can I use on Linux? On linux you could use sched_setaffinity, but I don't think fpc has wrapped that yet. Linux man page says it's linux specific. Micha _ To unsubscribe: mail [EMAIL PROTECTED] with unsubscribe as the Subject archives at http://www.lazarus.freepascal.org/mailarchives
