Hi Dirk,
On 10/22/2013 09:08 AM, Dirk Geschke wrote:
I was just playing a little bit with bcache and it works fine. But
if I try random IOPS writes (writeback) on a file larger than the
cache, it seems not to work? At least I get a performance as without
bcache.
Did I miss something? Is caching disabled in such cases?
Has anyone a hint for me, what is going wrong?
Bcache has some specific handling of sequential I/O:
http://evilpiepirate.org/git/linux-bcache.git/tree/Documentation/bcache.txt
Could this explain what you're seeing?
Rolf
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