[mythtv-users] Information/Recommendations on a new MythTV
beww at beww.org
Wed Oct 11 16:07:35 UTC 2006
On Oct 11, 2006, at 9:26 AM, Timothy Chartier wrote:
>> EXT-2 is not a journaling system, which is generally considered not
> Opps. I ment EXT3.
>> I've read about issues with Reiser but have no personal
> Any chance you remember what some of those issues were?
I think some of it was squabbling among kernel developers, and I
didn't want t get involved in any filesystem that didn't have the
enthusiastic support of the entire kernel group. Seems to have been a
personal-type thing, don't know if it has been resolved yet. I don't
really care what the issues are, or who is right or wrong, the mere
fact that a dichotomy exists is enough to cause me to stay away.
>> One thing to be aware of with EXT3 is that when you delete a large
>> file (as just about all Myth-recorded files are) the system blocks
>> all disk access until the delete is complete.
> This seems to be a bad idea and would really hamper system
> performance on a servr with larges files and multiuser access.
> Could just be my limited understanding though.
It certainly could be a problem, but it hasn't really been so for me.
I have a single-user Myth box and almost never auto-expire things, so
deletions are generally manual. I just pay attention to what's
happening if I need to delete a long file, and the worst case is I
get a second or two of lost data on a recording, not a major issue
for me, no worse than a drop-out on an analog video tape.
As I said, adequate buffering should go a long way to eliminating
this problem. Multi-Gigabyte video files were not really in vogue
when EXT-2 was designed, and most applications do not have real-time
But if choosing another FS eliminates even that minor problem, with
no downside, I'd do that if I had it to do over again.
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