Messages in this thread | | | From | (H.J. Lu) | Subject | NFS in Linux 2.2.1 | Date | Mon, 1 Feb 1999 12:37:24 -0800 (PST) |
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Hi,
I have been testing NFS in Linux 2.2.1 using Bonnie on a 10mbs network. I installed Solaris 7 and Linux 2.2.1 on the same machine. It is a Pentium II 450Mhz/512K cache with 64MB RAM. I also used a Dual Xeon 450MHz/2MB cache with 512MB RAM running Linux 2.2.1 to test NFS with.
The good news is the performance of the default kernel NFS server and client under Linux 2.2.1 is comparable to Solaris 7 on the same hardware. In the case of the default kernel NFS server, Linux is faster than Solaris 7 on the NFS write since Linux does async write by default.
The bad news is when the sync write enabled for the Linux kernel NFS server, the NFS write performance on the Linux server drops dramatically. The client write speed slows down from around 900KB/s to around 60KB/s. It seems something is wrong in the Linux kernel when the kernel NFS server does sync write. Does anyone have any ideas on that?
Thanks.
-- H.J. Lu (hjl@gnu.org)
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