Messages in this thread |  | | Date | Fri, 07 Sep 2001 13:35:09 -0700 | From | Ben Greear <> | Subject | Blocking v/s Non-blocking NFS (and iSCSI) file reads/writes. |
| |
I'm working on writing a program that will be used to stress test NFS and iSCSI based file systems. I am currently using a non-threaded, and non-forking architecture based on non-blocking IO and select() to do my network traffic generation. I would like to be able to fit the file-testing code in the same framework. However, I'm not sure I can make this model work with network based file systems....
So, does select() work for NFS reads? (IE: I open a file-descriptor on an NFS mounted file system, and start reading. The network goes down. Will select() start not marking that file as read/write-able?)
If I set the file descriptor to be O_NONBLOCK, will it return immediately if the network is down (regardless of what select told me)?
I have the same questions about an iSCSI based file system...
Does anyone have any suggestions for reading material on this topic, other than kernel source and patches?
Thanks, Ben
-- Ben Greear <greearb@candelatech.com> <Ben_Greear@excite.com> President of Candela Technologies Inc http://www.candelatech.com ScryMUD: http://scry.wanfear.com http://scry.wanfear.com/~greear - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
|  |