Re: Backup speed

David C. Partridge said on Fri, Dec 23, 2016 at 01:59:34PM +0000:
>Let me tinker with that bit of the code trying a different
>"optimal_set_size" for streaming backups (does any device other than tape do
>streaming?).

 I thnik that some DVD/CD can support a straming approach as well to be written. 
 Honestly I don't really care, as I think most people use DVD/CD with xorriso/genisoimage/mkisofs or USB with copy, or tapes with streaming through buffer.
 So go for your tests, if someone has something to say here, it should be now !

>Certainly the larger afioballs got a lot closer to getting the tape
>streaming properly than the smaller ones.
>I'll let you know the results.

Ok thanks a lot !

>> Maybe the buffer process in the middle is not giving enough to eat to your
>tape drive.
>
>Hmmm how on earth could I check that!??

You could try to increase the buffer used by buffer maybe by using -b 32 MB e.g. to see the impact. and varying that number.
It will have a direct impact on the buffer command behaviour normally.

Just an idea, feel free to experiment and come back with questions/points.

bruno.
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