> What are your data rates in MB/s? scp says: 4.6MB/s > If you are on a fast network (Gbit Ethernet, Inifiband ...) a disk cache > may be remarkably slower than the network. In this case memory cache can > help. I haven't tried that yet, becaus in the file /etc/openafs/afs.conf of my Debian Etch installation there is a comment that says:
# Using the memory cache is not recommended. It's less stable than the disk # cache and doesn't improve performance as much as it might sound. > > Another point is chunk size. The default (64 KB) is bad for reading > where each chunk is fetched in a separate RPC. with disk cache bigger > chunks (1 MB) can be recommanded, anyway. For memory cache of, say, 64 > MB you would limit the number of chunks to only 64 which is certainly > too low. With automatically choosen values writing a 128 MB file in AFS takes about 44-45 seconds. On that machine I have a 3 GB cache. With the following options, which a have taken from an example in a Debian Configfile, writing the 128 MB file takes about 48 seconds :( -chunksize 20 -files 80000 -dcache 10000 -stat 15000 -daemons 6 -volume s 500 -rmtsys Greetings kai -- Ist Ihr Browser Vista-kompatibel? Jetzt die neuesten Browser-Versionen downloaden: http://www.gmx.net/de/go/browser _______________________________________________ OpenAFS-info mailing list OpenAFS-info@openafs.org https://lists.openafs.org/mailman/listinfo/openafs-info