> Reading one really big file (bigger than the memory available) over AFS, with > a cold cache it took very roughly 107% of the time it took with no cache; but > using a warm cache, it took 14% of the time it took with no cache. However, > this is on my particular test box, and it varies a lot from box to box. What network did that box have? I'm finding that with OpenAFS, and memcache, read performance is affected greatly by the -chunksize argument to afsd. Using -chunksize 20 (1MB chunks) gets me around 50MB/sec, while -chunksize 18 gets 5-7MB/sec. (I believe that's the size of the 'fetchrpc' calls) Another question with the afs client.. I'd really like to use the kafs client to mount a root filesystem, then use OpenAFS to mount /afs so I can have read/write support. I went so far as to patch kafs to mount as type 'kafs', but then found that both clients want to listent on port 7000. Can I either a) change the port for kafs b) get working read-write and auth support for kafs? I'm guessing a) is much more likely..
