<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt"><div><span>im using XFS and though i have to admit i sometimes(random once a 2 months on my "big" system) have a uncleared recorder failure </span></div><div><span>especially recording 4(sometimes more) programs in parallel at maybe 3 MBit/s per stream works fine with allocsize 512MB and a cheap segate 1TB <br></span></div><div><span>(also with the system on the same disk but different partition and using almost no swap with 2GB RAM)<br></span></div><div><br><span></span></div><div><span>however i also use NFS to give the old system the possibility to access the recordings of the big system too. <br></span></div><div><span>though i don't record through it a major performance drop even when reading can be viewed and even expanding the NFS buffering does not get rid of it completely</span></div><div><span>when
working with NFS one can see that accessing files only partially and not reading through causes some stuttering too as with many small files </span></div><div><span>this would either call for a "temporary file" (Buffer) stored locally and feed through the NFS in a constant stream or use of a different networkFF (both some options i have not evaluated yet completely)<br></span></div><div><br></div><div style="font-family: times new roman, new york, times, serif; font-size: 12pt;"><div style="font-family: times new roman, new york, times, serif; font-size: 12pt;"><font size="2" face="Arial"><hr size="1"><b><span style="font-weight:bold;">Von:</span></b> Gary Buhrmaster <gary.buhrmaster@gmail.com><br><b><span style="font-weight: bold;">An:</span></b> Discussion about MythTV <mythtv-users@mythtv.org><br><b><span style="font-weight: bold;">Gesendet:</span></b> 20:02 Samstag, 24.September 2011 <br><b><span style="font-weight:
bold;">Betreff:</span></b> Re: [mythtv-users] Storing recordings on network share<br></font><br>On Sat, Sep 24, 2011 at 10:37, belcampo <<a ymailto="mailto:belcampo@zonnet.nl" href="mailto:belcampo@zonnet.nl">belcampo@zonnet.nl</a>> wrote:<br>....<br>> If you use xfs with with allocsize=1024M, one can easy avoid most of the<br>> randomness of videofile-writes and thereby avoiding allmost if not all<br>> of the mentioned troubles.<br><br>Yes, and no. Using any extent based file system will reduce the<br>file fragmentation (which is generally a good thing), and reduce<br>the ongoing allocation overheads (also a good thing). But if you have<br>multiple files open for writing, you will still be seeking from one file<br>extent to another as each files chunks are written. As always, your<br>particular usage and results will vary.<br>_______________________________________________<br>mythtv-users mailing list<br><a
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