[Info-vax] DNFS1ACP using 100% of CPU

[Sum1]

On 2013-10-09 05:10:30 +0000, Paul Sture said:

> In article <5254b970$0$29867$c3e8da3$5496439d at news.astraweb.com>,
>  Sum1 <not at here.com> wrote:
> 
>> Remote files are accessed by the server as an NFS client to an OSX
>> server.  The configuration of both OSX and OpenVMS hasn't changed for a
>> couple of years, with the exception of annual hobbyist license upgrades
>> (and then a reboot) and six-monthly AUTOGENs.
> 
> What version of OS X and is there anything on the logs on that side?
> 
> Any recent OS X updates applied?

And an update from reading something (slightly) related in a SAS on VMS 
problem I found via Google.

VMS is trying to read hundreds of files/second as an NFS client, just 
changed CHANNELCNT from 512 to 2048 and the nature of the problem has 
slightly changed.

Now, DNFS1ACP still uses 100%, but the system soft fault rate is almost 
0 and the Buffered I/O rate remains around the 300-400 mark.

So, rather than performance grinding to a complete halt, is is just 
extremely slow.  And again, nothing has changed on OSX or OpenVMS for 
months, except the change to CHANNELCNT just now, done via AUTOGEN and 
MIN_CHANNELCNT=2048 in MODPARAMS.DAT.