Date: Tue, 3 May 2011 15:59:23 +0000 From: Holger Kipp <Holger.Kipp@alogis.com> To: Vitaly Liaschuk <larinus@gmail.com>, FreeBSD current mailing list <current@freebsd.org> Subject: RE: firefox4+html5 Message-ID: <814C9E9472FDCC40AAC3FC95A2D67E3B0BD798A3@msx3.exchange.alogis.com> In-Reply-To: <20110503174949.7ada20dc@laptop> References: <20110503174949.7ada20dc@laptop>
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Dear Vitaly, I'm usually not using FreeBSD for accessing youtube, but as you're using FreeBSD 9.0-current, please note that this presumably has Witness enabled (because FreeBSD 9.0-current is still development branch), which will reduce performance and hence might give the problems you described. from http://www.freebsd.org/doc/en/books/developers-handbook/kerneldebug-op= tions.html options WITNESS: this option enables run-time lock order tracking and verif= ication, and is an invaluable tool for deadlock diagnosis. WITNESS maintain= s a graph of acquired lock orders by lock type, and checks the graph at eac= h acquire for cycles (implicit or explicit). If a cycle is detected, a warn= ing and stack trace are generated to the console, indicating that a potenti= al deadlock might have occurred. WITNESS is required in order to use the sh= ow locks, show witness and show alllocks DDB commands. This debug option ha= s significant performance overhead, which may be somewhat mitigated through= the use of options WITNESS_SKIPSPIN. Detailed documentation may be found i= n witness(4). =3D> http://www.freebsd.org/cgi/man.cgi?query=3Dwitness&sektion=3D4 Best regards, Holger ________________________________________ From: owner-freebsd-current@freebsd.org [owner-freebsd-current@freebsd.org]= on behalf of Vitaly Liaschuk [larinus@gmail.com] Sent: 03 May 2011 16:49 To: FreeBSD current mailing list Subject: firefox4+html5 Hi, list! I do not know in what part of forum to write, so I decide write in Gene= ral. I'm trying to use html5 on youtube.com. I getting the video stream, but= audio "stutters" on most of video files . I tried to use the chrome-browse= r and he is works fine. Also, I tried boot from usb flash drive with instal= led ubuntu and firefox 4 and this works. So, I believe what trouble is in my FreeBSD. [QUOTE] > uname -a FreeBSD laptop 9.0-CURRENT FreeBSD 9.0-CURRENT #0 r221296M: Sun May 1 20:1= 3:15 EEST 2011 larin@laptop:/usr/obj/usr/src/sys/GENERIC amd64 > [/QUOTE] My box is: Laptop asus UL30A, 3 GB ram, Intel CPU U2300 1.2Mhz. Thanks in advance. _______________________________________________ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" -- Holger Kipp Diplom-Mathematiker Senior Consultant Tel. : +49 30 436 58 114 Fax. : +49 30 436 58 214 Mobil: +49 178 36 58 114 Email: holger.kipp@alogis.com alogis AG Alt-Moabit 90b D-10559 Berlin web : http://www.alogis.com ---------------------------------------------------------- alogis AG Sitz/Registergericht: Berlin/AG Charlottenburg, HRB 71484 Vorstand: Arne Friedrichs, Joern Samuelson Aufsichtsratsvorsitzender: Reinhard Mielke
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