hi all: l used ping_pong tool to test ceph, as shown below : 1.If it supports coherent byte range locks between cluster nodes 2.How fast it handles lock contention 3.If it supports coherent read/write IO between nodes 4.How fast it handles contended IO between nodes 5.If it supports coherent mmap between nodes 6.How fast the mmap coherence works
the ping_pong code is here: http://junkcode.samba.org/ftp/unpacked/junkcode/ping_pong.c l start by running ping_pong on just one of the kernel client mount point like this: ping_pong /mnt/test.dat 3 it lock very fast : T02-OSD161:/usr/src/ping_pong# ./ping_pong /mnt/test.dat 3 1664 locks/sec but when l start a second copy of ping_pong on another kernel client node in my cluster, there have been some errors: T02-OSD186:/usr/src/getosd# ./ping_pong /mnt/test.dat 3 lock at 0 failed! - Interrupted system call lock at 0 failed! - Interrupted system call lock at 0 failed! - Interrupted system call lock at 2 failed! - Interrupted system call lock at 1 failed! - Interrupted system call lock at 2 failed! - Interrupted system call ls this a bug of ceph ,or l do something wrong? thanks! -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
