RE: firefox4+html5

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-options.html

options WITNESS: this option enables run-time lock order tracking and verification, and is an invaluable tool for deadlock diagnosis. WITNESS maintains a graph of acquired lock orders by lock type, and checks the graph at each acquire for cycles (implicit or explicit). If a cycle is detected, a warning and stack trace are generated to the console, indicating that a potential deadlock might have occurred. WITNESS is required in order to use the show locks, show witness and show alllocks DDB commands. This debug option has significant performance overhead, which may be somewhat mitigated through the use of options WITNESS_SKIPSPIN. Detailed documentation may be found in witness(4).

=> http://www.freebsd.org/cgi/man.cgi?query=witness&sektion=4

Best regards,
Holger

________________________________________
From: owner-freebsd-current_at_freebsd.org [owner-freebsd-current_at_freebsd.org] on behalf of Vitaly Liaschuk [larinus_at_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 General.
    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-browser and he is works fine. Also, I tried boot from usb flash drive with installed 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 20:13:15 EEST 2011     larin_at_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_at_freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-current
To unsubscribe, send any mail to "freebsd-current-unsubscribe_at_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_at_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