[dtrace-discuss] disk service time using dtrace

2009-08-11 Thread vhiz
Hi, I am trying to figure out the service time distribution for disk reads using dtrace. I am using Solaris Community edition, with UFS as the filesystem. I have written simple scripts which use fbt, but am not getting any consistency in my results. The biggest hindrance seems to be

Re: [dtrace-discuss] disk service time using dtrace

2009-08-11 Thread Brendan Gregg - Sun Microsystems
G'Day Vish, On Tue, Aug 11, 2009 at 03:39:01PM -0700, vhiz wrote: Hi, I am trying to figure out the service time distribution for disk reads using dtrace. I am using Solaris Community edition, with UFS as the filesystem. I have written simple scripts which use fbt, but am not

Re: [dtrace-discuss] disk service time using dtrace

2009-08-11 Thread Brendan Gregg - Sun Microsystems
On Tue, Aug 11, 2009 at 07:01:19PM -0400, Vishal Ahuja wrote: Hi Brendan, Thank you for the reply. I was referring to the file system cache. Sorry, I am not aware of io provider? Ok; if you are interested in disk service time, then you can trace from the disk driver or abstraction.