Hi Steve,
I appreciate you very much for your reply. I had tried the
--trace-flags="Exec" and got a very big file which was nearly 9GB. I thought it
was the statistics instruction by instruction.And I searched the file by the
keyword "thread" and I got the information like this:
61912087000: system.cpu0 T0 : @kernel_thread : ldah r29,79(r27) :
IntAlu : D=0xfffffc0000801c70
...
2026704706000: system.cpu3 T0 : @start_thread+36 : ret (r26)
: IntAlu :
Is that possible that I can use such an information to help me understand when
each thread starts and ends.
Thank you very much for your help and best wishes to you!
Yue Li
07-05-2007
----- Original Message -----
From: Steve Reinhardt <[EMAIL PROTECTED]>
Date: Tuesday, July 3, 2007 12:11 pm
Subject: Re: [m5-users] How to get the statistics for each thread
To: M5 users mailing list <m5-users@m5sim.org>
> On 7/2/07, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
> >
> > Hi Ali,
> >
> > Thank you very much for your reply. Could you please tell me
> how to use
> > the trace-flag to see when the
> >
> > kernel thread info struct changes from one thread to another
> thread?I mean
> > which specific flag is for that.
>
>
>
> It's the Thread flag, --trace-flags=Thread. However we recently
> discoveredthat there's some code that option depends on in
> sim/vptr.hh that is broken,
> so in the short term it won't do you any good.
>
> The reason that I think there are two cycle counts because each
> cpu has
> > its own CPU cycles like
> >
> > system.cpu0.numCycles. Except that we still have sim_ticks
> which is
> > nearly equal to the
> >
> > system.cpu0.numCycles. And sim_seconds=sim_ticks/1THz. Since we
> only have
> > CPU cycle counts,how
> >
> > can we use it to be divided by the system frequency?
>
>
>
> The numCycles for the CPU object is the number of ticks that the
> CPU is
> active (not disabled or waiting to start up). Typically that
> should be the
> same as (or very nearly the same as) sim_ticks, which is the total
> number of
> ticks in the simulation. They are the same tick units though.
>
>
> Thanks a lot for your help.Best wishes to you!
> >
> >
> > Yue Li
> > 07-02-2007
> >
> >
> >
> > ----- Original Message -----
> > From: Ali Saidi <[EMAIL PROTECTED]>
> > Date: Thursday, June 28, 2007 3:12 pm
> > Subject: Re: [m5-users] How to get the statistics for each thread
> > To: M5 users mailing list <m5-users@m5sim.org>
> >
> > >
> > > On Jun 28, 2007, at 2:45 PM, <[EMAIL PROTECTED]> wrote:
> > >
> > > > Hi everyone,
> > > >
> > > > I have a multithreaded program running on m5-2.0b3 in full
> > > > system mode. I can get the m5stats.txt which includes the
> > > > statistics for each core. Is there anybody who can tell me how
> > > to
> > > > get the statistics for each thread instead of each core by
> > > > configuring m5?
> > > There isn't any way we've implemented to do this. If you enable
> > > the
> > > traceflag Thread you should see when the kernel thread info struct
> > >
> > > changes from one thread to another thread, but this information
> > > isn't
> > > connected into the statistics code at the moment. You would have
> > > to
> > > make some modifications for it to work. Take a look at arch/alpha/
> > > linux/* for more information about how we figure out what
> > > thread/pid/
> > > process name is running.
> > >
> > > > Another problem is I found there are two frequency for
> > > > simulator.One is 1THz for system and the other is 2GHz for CPU.
> > > But
> > > > in the statistics file CPU and system have the nearly same cycle
> > >
> > > > counts.So could you please why different clock frequency are
> used?> > We simulate the system at 1THz so you don't have to have all
> > > devices
> > > in the system be some multiple of the CPU frequency. I don't
> > > believe
> > > there is a cycle count attached to a system, only to CPUs. Do you
> > >
> > > have an example? Both parameters are configurable.
> > >
> > > Ali
> > > _______________________________________________
> > > m5-users mailing list
> > > m5-users@m5sim.org
> > > http://m5sim.org/cgi-bin/mailman/listinfo/m5-users
> > >
> > _______________________________________________
> > m5-users mailing list
> > m5-users@m5sim.org
> > http://m5sim.org/cgi-bin/mailman/listinfo/m5-users
> >
> >
>
_______________________________________________
m5-users mailing list
m5-users@m5sim.org
http://m5sim.org/cgi-bin/mailman/listinfo/m5-users
