[Beowulf] since we are talking about file systems ...

Joe Landman landman at scalableinformatics.com
Tue Jan 17 15:10:02 EST 2006


Joseph Mack NA3T wrote:

>> Ummm... going on 10 minutes now, and it still hasn't returned.  Looks 
>> like it is creating 50-80 files per second.  Running a quick ls in 
>> that directory from the file server itself shows about 36k files out 
>> of 50k.
> 
> Samba is slow - I've read that it waits for the writes to go onto the 
> disk, not just the OS to accept the write. You can configure samba to 
> not wait, but waiting is the default

Well, I measured the performance and it is not very slow. See below


> So I wanted to see if this was a SAMBA server problem.  Ran
> 
>     time smbclient -U landman //crunch-r/big
> 
> from another linux machine. Logged in. cd'ed to dir. typed ls.
> exited.
> Even with the interaction time in there (password entry, etc), this took
> *only* 10 seconds wall clock. Doesn't sound like the SAMBA server is the
> issue.



-- 
Joseph Landman, Ph.D
Founder and CEO
Scalable Informatics LLC,
email: landman at scalableinformatics.com
web  : http://www.scalableinformatics.com
phone: +1 734 786 8423
fax  : +1 734 786 8452
cell : +1 734 612 4615

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