Andi Kleen wrote:
> In practice the memory pinning does not seem to be a problem with reiserfs.
> Reiserfs currently always uses a 32MB log which limits the pinned memory
> to 32MB per file system (all pinned buffers need to have log space
> reserved).
Ouch. I need 32MB per file system? That's more RAM than my 128MB
machine has... and 32MB is way more RAM than the last 486 I used.
> In addition it only logs metadata and you have to do a lot of work to
> quickly dirty 32MB or more of metadata. It is rather unlikely in
> practice because you would need to deal with thousands of files to
> create that much dirty metadata.
find / -> 100,000 dirty atime inodes.
Happens every night in a standard cron script.
-- Jamie
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