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[vdr] Re: AV-Sync lost ???
Hello Axel,
be carefull during your tests with bonnie. As the manual says you should use a file size
2*bigger than your total SDRAM. Otherwise you will measure not real memory-disk performance
(more disk-cache stuffs).
You use only 150Mbyte. Please try this with 1000 Mbye (-s 1000) and the performance will
display more the "real world".
Wolfi
Axel Gruber wrote:
> > Hey, thats funny: "ampersandonlyencodedforie" - ROTFL
> Yes - sould be a bug in VDRADMIN - i made this timer by using the WEB-Interface :-)
>
> > My guess would be that your harddisk performance has gone down
> > dramatically.
> > Can't say why, though, but a "DVB driver buffer overflow" normally
> > indicates
> > that VDR can't write the data to disk fast enough. Have you tried running
> > a disk performance test?
>
> What i donīt understand is, that i donīt have changed anything on this system....
> Donīt know why this happen.....
>
> I made a diskPerformance-Test now on all 6 Harddrives and watched the messages logfile
> for Error-Messages - but - no error-messages in logfile...
>
> The Disk-performance is ok - all diskīs have same performance...
>
> I think i will delete the Driver and the VDR wich are installed and will install
> a fresh virgin DVB-Driver and VDR and test it again some days....
>
> With this hardwareconfiguration i was able to record 3 Streams and watch a Recorded Movie
> while my Girlfirend watched another Recorded Movie over the Network without any problems
> so i donīt understand why this happen now at recording only 1 Stream....
>
> Thanke you and all for Helping !!!!!
>
> Here you can see the output of Bonnie for all 6 Disks:
>
> Bonnie 1.2: File './Bonnie.22548', size: 157286400, volumes: 1
> Writing with putc()... done: 7071 kB/s 87.9 %CPU
> Rewriting... done: 7927 kB/s 11.3 %CPU
> Writing intelligently... done: 24634 kB/s 26.0 %CPU
> Reading with getc()... done: 5546 kB/s 67.2 %CPU
> Reading intelligently... done: 22915 kB/s 21.9 %CPU
> Seeker 1...Seeker 3...Seeker 2...start 'em...done...done...done...
> ---Sequential Output (mhonarcnc)--- ---Sequential Input-- --Rnd Seek-
> -Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --04k (03)-
> Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
> tvserv 1* 150 7071 87.9 24634 26.0 7927 11.3 5546 67.2 22915 21.9 142.9 2.2
>
> tvserver:/max2 # bonnie -s 150
> Bonnie 1.2: File './Bonnie.22577', size: 157286400, volumes: 1
> Writing with putc()... done: 6672 kB/s 83.8 %CPU
> Rewriting... done: 8376 kB/s 11.7 %CPU
> Writing intelligently... done: 28063 kB/s 29.2 %CPU
> Reading with getc()... done: 5701 kB/s 67.1 %CPU
> Reading intelligently... done: 23031 kB/s 22.9 %CPU
> Seeker 1...Seeker 2...Seeker 3...start 'em...done...done...done...
> ---Sequential Output (mhonarcnc)--- ---Sequential Input-- --Rnd Seek-
> -Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --04k (03)-
> Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
> tvserv 1* 150 6672 83.8 28063 29.2 8376 11.7 5701 67.1 23031 22.9 166.5 3.3
>
> tvserver:/max3 # bonnie -s 150
> Bonnie 1.2: File './Bonnie.22644', size: 157286400, volumes: 1
> Writing with putc()... done: 6557 kB/s 85.7 %CPU
> Rewriting... done: 10864 kB/s 22.1 %CPU
> Writing intelligently... done: 29553 kB/s 34.8 %CPU
> Reading with getc()... done: 6320 kB/s 75.0 %CPU
> Reading intelligently... done: 27862 kB/s 25.0 %CPU
> Seeker 1...Seeker 2...Seeker 3...start 'em...done...done...done...
> ---Sequential Output (mhonarcnc)--- ---Sequential Input-- --Rnd Seek-
> -Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --04k (03)-
> Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
> tvserv 1* 150 6557 85.7 29553 34.8 10864 22.1 6320 75.0 27862 25.0 166.9 2.9
>
> tvserver:/max4 # bonnie -s 150
> Bonnie 1.2: File './Bonnie.22656', size: 157286400, volumes: 1
> Writing with putc()... done: 6800 kB/s 87.1 %CPU
> Rewriting... done: 10980 kB/s 20.9 %CPU
> Writing intelligently... done: 32722 kB/s 37.7 %CPU
> Reading with getc()... done: 6242 kB/s 74.0 %CPU
> Reading intelligently... done: 27440 kB/s 26.4 %CPU
> Seeker 1...Seeker 3...Seeker 2...start 'em...done...done...done...
> ---Sequential Output (mhonarcnc)--- ---Sequential Input-- --Rnd Seek-
> -Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --04k (03)-
>
> tvserver:/max5 # bonnie -s 150
> Bonnie 1.2: File './Bonnie.22668', size: 157286400, volumes: 1
> Writing with putc()... done: 6492 kB/s 85.9 %CPU
> Rewriting... done: 13822 kB/s 21.2 %CPU
> Writing intelligently... done: 33284 kB/s 54.0 %CPU
> Reading with getc()... done: 6159 kB/s 72.3 %CPU
> Reading intelligently... done: 24459 kB/s 23.7 %CPU
> Seeker 1...Seeker 3...Seeker 2...start 'em...done...done...done...
> ---Sequential Output (mhonarcnc)--- ---Sequential Input-- --Rnd Seek-
> -Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --04k (03)-
> Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
> tvserv 1* 150 6492 85.9 33284 54.0 13822 21.2 6159 72.3 24459 23.7 173.9 2.7
>
> tvserver:/max6 # bonnie -s 150
> Bonnie 1.2: File './Bonnie.22727', size: 157286400, volumes: 1
> Writing with putc()... done: 6703 kB/s 88.1 %CPU
> Rewriting... done: 12667 kB/s 21.9 %CPU
> Writing intelligently... done: 42118 kB/s 65.0 %CPU
> Reading with getc()... done: 5683 kB/s 70.7 %CPU
> Reading intelligently... done: 28759 kB/s 33.0 %CPU
> Seeker 1...Seeker 3...Seeker 2...start 'em...done...done...done...
> ---Sequential Output (mhonarcnc)--- ---Sequential Input-- --Rnd Seek-
> -Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --04k (03)-
> Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
> tvserv 1* 150 6703 88.1 42118 65.0 12667 21.9 5683 70.7 28759 33.0 189.8 2.9
--
==============================================================
Dipl.-Ing. Wolfgang Fiesel EMAIL: fie@iis.fhg.de
Group Manager Audio Systems 2
Department: STUDIO PHONE: +49 9131 776-377
Am Weichselgarten 3 FAX: +49 9131 776-399
D-91058 Erlangen, Germany WWW: http://www.iis.fhg.de
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