Lars Schimmer wrote: > Hi! > > Just a quick question: > I installed a windows 1.4.0RC7 OpenAFS Client and a 1.4 RC4 fileserver > on Linux, both connected via a 100 MBit network. But upload via AFS just > reach 3 MB/sec and the CPU of the client is under heavy load. > From linux 1.4.0RC4 Clients I get 8-9 MB/sec. > Is that the limitation of the smb usage? Any hints for me to get more > speed? Will a switch to GBit extend the speed (although I don't believe > in this)?
OAFW defaults to using "fs crypt on". Linux does not. If you are testing performance by copying a single file back and forth you are limited by the fact that only a single RX call will be used to send blocks at a time. There is a limit a four simultaneous RX calls at a time for the same set of credentials (RX connection) to the same server. You can use more bandwidth by transfering multiple files to multiple servers or with multiple user tokens. > And as release notes tells me, windows client doesn't support files >2 > GB, I can copy files with 5 GB without any problems to afs and from afs... There is no support in the version of the SMB/CIFS protocol for representing file sizes greater than 2GB. There is support in the cache manager for greater than 2GB. However, I wouldn't trust the contents. Jeffrey Altman
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