Thanks for your help, here comes another question :-) How can I know that the "hesitation" occurs using afsmonitor, what value should I consult? And current chunksize is 256K, if bugger one shows better performance, what is the limit ofr chunksize?
Thanks in advance. On Tue, Mar 25, 2003 at 08:31:44AM -0700, Dexter Kim Kimball wrote: > Use afsmonitor to look at your cache behavior. > > You may find that the "hesitations" occur when the cache is purging. > > If so, reduce cache size and repeat benchmarking until the hesitations go > away. > > With the large files you describe, I'd also look at changing the default > chunksize (look at arguments to "afsd") from 64K to something much larger. > > Kim > --------------------------------------------------- > Dexter "Kim" Kimball > CCRE, Inc. > [EMAIL PROTECTED] > > > ----- Original Message ----- > From: "S.J.Chun" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Tuesday, March 25, 2003 8:18 AM > Subject: [OpenAFS] [Q] Funny Traffic ... > > > > Hi, > > > > We are using one OpenAFS server and one OpenAFS client, through the client > we are serving files( > > rather big sized files, normally 600~800MB) using apache http server. Now, > we have BIG performance > > problem. We've chosen AFS for its high scalability but the performance is > very bad. We are using > > 100M dedicated line and expected the download speed as up to 800K or > 1,000K through our cable > > or ADSL line, but only got 40 ~ 80K. What is the best configuration for > our purpose? > > > > And if I try to get file using ftp, the data transfer is rather funny; it > gets 256K of data, then waits some > > times(several seconds) then again gets another 256K of data. Why the data > transfer is not continuous? > > Misconfiguration? > > > > The server has 2 TB of storage and the client has 9GB of cache. And OS is > Linux. > > > > Thanks in advance. > > _______________________________________________ > > OpenAFS-info mailing list > > [EMAIL PROTECTED] > > https://lists.openafs.org/mailman/listinfo/openafs-info > > ----- Original Message ----- > From: "S.J.Chun" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Tuesday, March 25, 2003 8:18 AM > Subject: [OpenAFS] [Q] Funny Traffic ... > > > > Hi, > > > > We are using one OpenAFS server and one OpenAFS client, through the client > we are serving files( > > rather big sized files, normally 600~800MB) using apache http server. Now, > we have BIG performance > > problem. We've chosen AFS for its high scalability but the performance is > very bad. We are using > > 100M dedicated line and expected the download speed as up to 800K or > 1,000K through our cable > > or ADSL line, but only got 40 ~ 80K. What is the best configuration for > our purpose? > > > > And if I try to get file using ftp, the data transfer is rather funny; it > gets 256K of data, then waits some > > times(several seconds) then again gets another 256K of data. Why the data > transfer is not continuous? > > Misconfiguration? > > > > The server has 2 TB of storage and the client has 9GB of cache. And OS is > Linux. > > > > Thanks in advance. > > _______________________________________________ > > OpenAFS-info mailing list > > [EMAIL PROTECTED] > > https://lists.openafs.org/mailman/listinfo/openafs-info > _______________________________________________ OpenAFS-info mailing list [EMAIL PROTECTED] https://lists.openafs.org/mailman/listinfo/openafs-info
