December 2005 - Darwin-dev - lists.apple.com

Getting command line parameters outside argv passed to main
by Shawn Erickson 19 Dec '05

19 Dec '05

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Domainkey-signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition; b=Vhhuagi1lvvsbzxhHi7EBVPrRMFUrG90AhWjvYb/gfStynKawzn2wS2KXajqZG2ZekJrAUv5PJ5vb6OIGJoFGHs6JysVh0MIHzYC7GCEISdnfeePT8MmPJoImk5OVGvsulVkxNhmiIsgHXUIY1DF7x9b1MNBf+Tg6HQXhEP2V5o= I wonder what the correct POSIXish way of getting process arguments by code outside of main (either by function or possibly they are stashed in a standard global variable). I know about NSProcessInfo at the Cocoa level but I am looking for a C based api at/near the BSD layer (core foundation) that provides similar functionality. I note that kvm_getprocs, kvm_getargv, kvm_getenvv exist but I believe those are for in kernel use (are are likely overkill). If no built-in feature exists I will simply grab the arguments while in main and stash what I need in a global var for later use or accessible via some internal api. -Shawn _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… This email sent to site_archiver(a)lists.apple.com

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Re: libGL in X11 on MacOS X allow forwarding?
by Martin Costabel 18 Dec '05

18 Dec '05

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com User-agent: Thunderbird 1.5 (Macintosh/20051025) Can anyone clarify this for me? The person packaging ccpnmr for fink seems to believe that the MacOS X libGL doesn't allow for X11 forwarding because it does system calls to aqua. I suspect this is only correct for the system framework version of GL and not for libGL.dylib in /usr/X11R6/lib. Any clarifications would be most appreciated. failed to bind to surface -- Martin _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… Jack Howarth wrote: >From my own observation I would say it doesn't work. Trying to run glxgears over a forwarded X11 connection, I see that it opens a window but doesn't display anything inside and gives the message An explanation could be that /usr/X11R6/lib/libGL.dylib is linked to the GL framework. This email sent to site_archiver(a)lists.apple.com

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libGL in X11 on MacOS X allow forwarding?
by howarth＠bromo.msbb.uc.edu 17 Dec '05

17 Dec '05

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Can anyone clarify this for me? The person packaging ccpnmr for fink seems to believe that the MacOS X libGL doesn't allow for X11 forwarding because it does system calls to aqua. I suspect this is only correct for the system framework version of GL and not for libGL.dylib in /usr/X11R6/lib. Any clarifications would be most appreciated. Jack _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… This email sent to site_archiver(a)lists.apple.com

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Re: Strange CPU spikes on OSX 10.3.9
by Markus Hitter 16 Dec '05

16 Dec '05

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Am 16.12.2005 um 22:28 schrieb Stéphane Letz: Markus - - - - - - - - - - - - - - - - - - - Dipl. Ing. Markus Hitter http://www.jump-ing.de/ _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… Hum... It seems you've not really read/understood my mail... I've perfectly understood your mail. Unless you wrote something different from what you meant, of course. It's a common misunderstanding tasks with low average processing requirements should show low processor usage at any time. This is not the case. ... the CPU spike (which last several second) ... Several seconds? I wouldn't call this a "spike". I'd use Shark to find out what the process is doing all this time. This email sent to site_archiver(a)lists.apple.com

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Re: Strange CPU spikes on OSX 10.3.9
by Stéphane Letz 16 Dec '05

16 Dec '05

site_archiver(a)lists.apple.com Delivered-To: Darwin-dev(a)lists.apple.com Le 16 déc. 05 à 21:57, Markus Hitter a écrit : Am 16.12.2005 um 15:06 schrieb Stéphane Letz: Hum... It seems you've not really read/understood my mail... Regards Stephane Letz _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… We are debugging a strange issue with abnormal CPU spikes occurring in a test application. CPU spikes are perfectly normal. If you start some calculation, the CPU runs 100%, until done. If you do a short calculation, you get a spike. Anything else would be a waste of time without a benefit. The question you're after is probably, how are other tasks/apps/ threads affected by your app. This is where scheduling policies jump into the picture. The thread that show this behaviour is a real-time (time-constraint) priority 97, and in the test applications (the *simplest* code i had to show the problem) does nothing more that rescheduling itseld the next millisecond. Thus it normal bahaviour is to consume almost 0% The real application does *something* in its real-time thread, but its timing get disturbed when the CPU spike (which last several second) occurs. This email sent to site_archiver(a)lists.apple.com

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Re: Strange CPU spikes on OSX 10.3.9
by Markus Hitter 16 Dec '05

16 Dec '05

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Am 16.12.2005 um 15:06 schrieb Stéphane Letz: The spikes are probably too short to be seen by you/your tool. Markus - - - - - - - - - - - - - - - - - - - Dipl. Ing. Markus Hitter http://www.jump-ing.de/ _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… We are debugging a strange issue with abnormal CPU spikes occurring in a test application. CPU spikes are perfectly normal. If you start some calculation, the CPU runs 100%, until done. If you do a short calculation, you get a spike. Anything else would be a waste of time without a benefit. The question you're after is probably, how are other tasks/apps/ threads affected by your app. This is where scheduling policies jump into the picture. On 10.4.3, the average CPU use on a dual G5 is now 0.6 %, but there is no more CPU spike .... This email sent to site_archiver(a)lists.apple.com

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Strange CPU spikes on OSX 10.3.9
by Stéphane Letz 16 Dec '05

16 Dec '05

site_archiver(a)lists.apple.com Delivered-To: Darwin-dev(a)lists.apple.com while (1) { Is this a known issue in 10.3.xxx version of the system? Thanks Stephane Letz _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… We are debugging a strange issue with abnormal CPU spikes occurring in a test application. The test starts a time-constraint thread running with period = 1000 us, computation = 500 us, constraint = 1000 us. In the test, the thread does nothing but reschedule itself every 1000 us, basically doing: next_absolute_name = current_absolute_date (using "mach_absolute_time" based code) + 1000 us (converted in absolute date) ; mach_wait_until(next_absolute_name); } (the real code maintains an absolute value incremented exactly by 1000 us to avoid timing deviation...) On 10.3.9 the average CPU use on a dual G5 is 0%... but we get CPU spike up to 50-60 % on a dual G5 (up to 90% on the mono G5) every 3-4 minutes in the RT thread. On 10.4.3, the average CPU use on a dual G5 is now 0.6 %, but there is no more CPU spike .... This email sent to site_archiver(a)lists.apple.com

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Re: g++ - mudflap
by Kevin Van Vechten 15 Dec '05

15 Dec '05

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com <http://www.opendarwin.org/projects/darwinbuild/> - Kevin On Dec 15, 2005, at 7:42 AM, Eliot wrote: Has anyone gotten libmudlap to work on OS X? I've tried downloading the source and compiling, but haven't had much luck. Thanks, Eliot _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… Which sources did you download? If you're interested in compiling Apple's sources in general, the DarwinBuild tool will help: This email sent to site_archiver(a)lists.apple.com

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Finder icon not in sync with file when locking / unlocking
by Joakim Nyström 15 Dec '05

15 Dec '05

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… This email sent to site_archiver(a)lists.apple.com

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g++ - mudflap
by Eliot 15 Dec '05

15 Dec '05

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Domainkey-signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition; b=mMxkj/Dl/o+K+GpezYpswGCkFFRF+Rqjoh58ZvKyScD2m1+prqYjqNi9qD+PUiE6IIFG+c9LVMP5WjsBoUyIZQUTTmdxr3hkKVhLktKivVb3SvsHYUV4UhmwGfctZQ78DkBhBRZLPxI827A1k43r+Xy6FnQxorOLpCs4duqMD5c= Has anyone gotten libmudlap to work on OS X? I've tried downloading the source and compiling, but haven't had much luck. Thanks, Eliot _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… This email sent to site_archiver(a)lists.apple.com

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