Hi Matt, The workload is small files creation on specific interval. Create + write in one thread, Later other thread will read + delete. Since these are small files there is frequent open and close, To test this I did just open and close and compared with both Kernel NFSv4 and Ganesha. I found overall time taken by Ganesha is more than Kernel nfsv4 for longer runs.
I tried to replace PTHREAD_MUTEX_init to use PTHREAD_MUTEX_ADAPTIVE_NP, It helped a bit, But not considerable difference. The performance drop with 2 clients doing open close drops sharply. Initially I thought dispatcher is bottleneck, After adding few debugs I found its multi threaded and not the problem. I will update you if I found something interesting. Tushar. On Mon, Apr 4, 2016 at 9:23 PM, Matt Benjamin <[email protected]> wrote: > Hi Tushar, > > There's no one specific thread, no, but as a project, we're interested in > continuous performance improvement. > > Can you provide details of your setup and workload for reference? > > Matt > > ----- Original Message ----- >> From: "Tushar Shinde" <[email protected]> >> To: [email protected] >> Sent: Sunday, April 3, 2016 10:10:24 AM >> Subject: [Nfs-ganesha-devel] NFSv4 open close operations are slow compared >> to Linux kernel NFSv4 >> >> >> >> Hi, >> >> I am facing issue that NFS v4 Ganesha is slower than kernel v4 server. I >> found it about 20-30 percent slower. >> >> Anyone know any patch/mail thread discussing this problem? >> >> Thank you, >> Tushar >> >> ------------------------------------------------------------------------------ >> >> _______________________________________________ >> Nfs-ganesha-devel mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/nfs-ganesha-devel >> > > -- > Matt Benjamin > Red Hat, Inc. > 315 West Huron Street, Suite 140A > Ann Arbor, Michigan 48103 > > http://www.redhat.com/en/technologies/storage > > tel. 734-707-0660 > fax. 734-769-8938 > cel. 734-216-5309 ------------------------------------------------------------------------------ _______________________________________________ Nfs-ganesha-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/nfs-ganesha-devel
