Hi, running bonnie++ on OpenAFS with large files (-s 8192) behave strange on my Linux systems: after writing up to 7 files with 1GB each, write performance drops from 50-60 MB/s to around 3MB/s. At the same time OpenAFS client and server start playing ping pong on the network. The load on the network is constantly above 50 MB/s when the problem occurs, going down to ~35 MB/s after some time - while the "real" transfer is still around 3 MB/s. After killing bonnie++ everything is OK again.
Tested with 2 clients: Scientific Linux 5, kernel 2.6.18-194.17.1.el5 and 2.6.18-194.17.4.el5 OpenAFS 1.4.12.1 $ cmdebug localhost 7001 -cache Chunk files: 4096 Stat caches: 6144 Data caches: 4096 Volume caches: 200 Chunk size: 262144 Cache size: 1048576 kB Set time: no Cache type: memory Server: Scientific Linux 5, kernel 2.6.18-194.17.4.el5 OpenAFS 1.4.12.1 Server and clients are test-systems without any other load. Any ideas? Achim_______________________________________________ OpenAFS-info mailing list [email protected] https://lists.openafs.org/mailman/listinfo/openafs-info
