Messages in this thread | | | From | (H.J. Lu) | Subject | Re: Please try knfsd 980922 | Date | Thu, 24 Sep 1998 10:33:31 -0700 (PDT) |
| |
> > > > On Thu, 24 Sep 1998, H.J. Lu wrote: > > > > > Well, it works fine for me wth Linux client. If you can > > find out why, I will take a look at kernel. > > > > Is pwd is a builtin or a normal command. You can get > > the source to see why it does it. > > I'm not sure whether I will take more time for this, for the IRIX machine
It sounds like an IRIX bug to me.
> is to be substituted by the linux server... Nevertheless I have tested the > lockd stuff: > > Catia reads and writes files (tested up to 30MB of filesize) without > causing any errors. This looks good, compared to earlier tests. Catia > heavily depends on lockd. The problem now is a veerrry poor write > performance, I did some speed-tests: > > Read a 30MB file from server to AIX 4.3 workstation: > > >From linux-2.1.122: about 45 sec > >From IRIX 5.3: about 45-50 sec > > Both with a stopwatch, good enough if you look at the next results: > > Write a 30MB file from AIX to server, includes 30sec of data preparation > (no network traffic) by Catia: > > To linux-2.1.122: about 585 sec > To IRIX 5.3: about 90 sec > > 2. Test: copy 30MB from IRIX client to linux server and back: > > cp cptest.txt /achilles/catv4 : Write to linux = 385 sec > cp /achilles/catv4/cptest.txt . : Read from linux = 42 sec > > Network is 10MBit Ethernet TP, low traffic. > Linux is a P100 64MB, 3C509 PnP, AHA 1542C, 2GB IBM SCSI > IRIX is a R3000 33MHz, 48MB, 2GB IBM SCSI > AIX is a 42P (140MHz) 192MB RAM > > The machines were all restricted to nfsv2 and udp and 8192 buffersizes.
I saw that one also. I don't have the time to track it down. It must be a bug somewhere in the kernel nfsd. If noone is working on it, I will take a look when I have time. But that will be a whole.
However, I was told you could turn on async write on the NFS server.
H.J.
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
| |