The time started and pid don't appear to be correct. I'm pretty sure the maximum size a pid can be is 16 bits and the started time should be positive. At least you did get the thread names correctly out, which might be al that matters. The threadInfo event is printing every time the kernel changes the user application stack, however that doesn't mean that it's executing user level code. If you want a trace of user level memory operations you'll need to check if the processor is in user mode or kernel mode (there is a helper function in arch/ alpha to do that). There isn't really any way to know which thread the kernel is doing a task for (e.g. if it receives a packet while the swapper is running, it's quite difficult to attribute that time to the application that was actually receiving that packet).
Ali On Aug 16, 2009, at 6:08 PM, Sujay Phadke wrote: > Hi, > Thanks Ali. I am using a patched kernel now with the > modifications > you suggested. Running specweb in FS mode. What I want to do is > differentiate memory access of the m5-spec thread from all others > (like OS > ones). I get the following output: > > *** > 487306156500: threadinfo: Currently Executing Thread swapper, pid > 3211264, > started at: -4398043299840 > 487306156500: testsys.physmem: Read of size 4 on address 0x3111a8 data > 0x6bfa8001 > 487306157000: testsys.physmem: Read of size 4 on address 0x6b7c1c data > 0x27ba001a > 487306157500: testsys.physmem: Read of size 4 on address 0x6b7c20 data > 0xa0680060 > 487306157500: testsys.physmem: Read of size 4 on address 0x1f03c060 > data 0x0 > 487306158000: testsys.physmem: Read of size 4 on address 0x6b7c24 data > 0x23bd2124 > 487306158500: testsys.physmem: Read of size 4 on address 0x6b7c28 data > 0x47e00409 > 487306159000: testsys.physmem: Read of size 4 on address 0x6b7c2c data > 0xa49da718 > 487306159000: testsys.physmem: Read of size 8 on address 0x854458 data > 0xfffffc000085e340 > *** > *** > 487306811000: threadinfo: Currently Executing Thread m5-spec, pid > 3211290, > started at: -4398043299840 > 487306811000: testsys.physmem: Read of size 4 on address 0x3111a8 data > 0x6bfa8001 > 487306811500: testsys.physmem: Read of size 4 on address 0x6b7c1c data > 0x27ba001a > 487306812000: testsys.physmem: Read of size 4 on address 0x6b7c20 data > 0xa0680060 > 487306812000: testsys.physmem: Read of size 4 on address 0x814060 > data 0x0 > 487306812500: testsys.physmem: Read of size 4 on address 0x6b7c24 data > 0x23bd2124 > 487306813000: testsys.physmem: Read of size 4 on address 0x6b7c28 data > 0x47e00409 > 487306813500: testsys.physmem: Read of size 4 on address 0x6b7c2c data > 0xa49da718 > 487306813500: testsys.physmem: Read of size 8 on address 0x854458 data > 0xfffffc000085e340 > 487306814000: testsys.physmem: Read of size 4 on address 0x6b7c30 > data 0x486 > > -------- > > So, if the OS thread swapper began at tick "487306156500", and the > m5-spec > begins at "487306811000" does it mean than all the memory accesses > between > these time points are that of "swapper"?. And all accesses after > 487306811000 are of m5-spec, till a new thread is executed? Or am I > wrong > here? If this is right, all I will have to do is right a script > which parses > this output inline and picks accesses which start when "m5-spec" is > started > and end at the next thread execution. > > Thanks, > Sujay > > > ----- Original Message ----- > From: "Ali Saidi" <[email protected]> > To: "M5 users mailing list" <[email protected]> > Sent: Monday, August 10, 2009 5:20 PM > Subject: Re: [m5-users] memory trace and thread ID > > >> >> The image doesn't have a kernel in it. You get that separately. Why >> don't >> you sprinkle some DPRINTFN() calls around the Threading stuff >> (threadinfo.hh and the system.cc) and see where it's not working as >> it >> should? If it's from symbols not being found then no, otherwise the >> problem >> should be rather apparent. >> >> Ali >> >> >> On Mon, 10 Aug 2009 17:15:02 -0400, "Sujay Phadke" >> <[email protected]> >> wrote: >>> I am using the linux-latest image available from the M5 website. >>> Does >> that >>> need to be patched? >>> >>> ----- Original Message ----- >>> From: "Ali Saidi" <[email protected]> >>> To: "M5 users mailing list" <[email protected]> >>> Sent: Monday, August 10, 2009 4:10 PM >>> Subject: Re: [m5-users] memory trace and thread ID >>> >>> >>>> >>>> The patches I'm referring to are in the linux-patches repository >>>> http://repo.m5sim.org/linux-patches. Depending on where you got >>>> your >>>> kernel >>>> from you might need to apply them. >>>> >>>> Ali >>>> >>>> >>>> On Mon, 10 Aug 2009 15:50:38 -0400, "Sujay Phadke" >>>> <[email protected]> >>>> wrote: >>>>> ----- Original Message ----- >>>>> From: "Sujay Phadke" <[email protected]> >>>>> To: <[email protected]> >>>>> Sent: Monday, August 10, 2009 3:28 PM >>>>> Subject: Re: [m5-users] memory trace and thread ID >>>>> >>>>> >>>>>> I do have the traceflag on. But I dont have the patches >>>>>> applied. On the >>>> M5 >>>>>> >>>>>> download page, the patches come under the section "Obsolete >>>>>> Revisions" >>>> and >>>>>> >>>>>> it says not required. I thought these were there in the m5- >>>>>> stable. Do I >>>>>> have to manually apply these? >>>>>> >>>>>> Thanks, >>>>>> Sujay >>>>>> >>>>>> ----- Original Message ----- >>>>>> From: "Ali Saidi" <[email protected]> >>>>>> To: "Sujay Phadke" <[email protected]> >>>>>> Sent: Monday, August 10, 2009 2:04 PM >>>>>> Subject: Re: [m5-users] memory trace and thread ID >>>>>> >>>>>> >>>>>>> >>>>>>> Are you running with the Thread traceflag on? You must be >>>>>>> using a >>>> kernel >>>>>>> with the thread_info structure annotated correctly. >>>>>>> Specifically, >>>>>>> m5struct.diff from the linux-patches repository must have been >>>>>>> applied. >>>>>>> >>>>>>> >>>>>>> Ali >>>>>>> >>>>>>> On Mon, 10 Aug 2009 13:40:05 -0400, "Sujay Phadke" >>>>>>> <[email protected]> >>>>>>> wrote: >>>>>>>> Thanks. I tried doing this, but this is all I get running >>>>>>>> specweb: >>>>>>>> >>>>>>>> 0: testsys.tsunami.io.rtc: Real-time clock set to Thu Jan 1 >> 00:00:00 >>>>>>> 2009 >>>>>>>> 0: drivesys.tsunami.io.rtc: Real-time clock set to Thu Jan 1 >>>>>>>> 00:00:00 >>>>>>> 2009 >>>>>>>> 4694261844000: drivesys.terminal: attach terminal 0 >>>>>>>> >>>>>>>> nothing more in the file. >>>>>>>> >>>>>>>> Can any method in threadinfo.hh help? >>>>>>>> >>>>>>>> - Sujay >>>>>>>> >>>>>>>> ----- Original Message ----- >>>>>>>> From: "Ali Saidi" <[email protected]> >>>>>>>> To: "M5 users mailing list" <[email protected]> >>>>>>>> Sent: Monday, August 10, 2009 12:48 PM >>>>>>>> Subject: Re: [m5-users] memory trace and thread ID >>>>>>>> >>>>>>>> >>>>>>>>> >>>>>>>>> Remove the false condition from src/arch/alpha/linux/ >>>>>>>>> system.cc:139 >>>> and >>>>>>>>> Thread should work. >>>>>>>>> >>>>>>>>> Ali >>>>>>>>> >>>>>>>>> >>>>>>>>> On Mon, 10 Aug 2009 12:10:58 -0400, "Sujay Phadke" >>>>>>>>> <[email protected]> >>>>>>>>> wrote: >>>>>>>>>> Hello, >>>>>>>>>> I want to generate memory traces and associate them >>>>>>>>>> with the >>>>>>> thread >>>>>>>>> ID >>>>>>>>>> or process ID. Is there a way to do this? I am running >>>>>>>>>> m5 in >>>>>>>>>> FS >>>>>>>>>> mode >>>>>>>>>> and want to differentiate the memory accesses of a >>>>>>>>>> particular >>>>>>>>> process >>>>>>>>>> from those of others, including the OS. I looked into the >>>>>>>>>> "Thread" >>>>>>>>> and >>>>>>>>>> "ExecThread" traceflags but they dont help. >>>>>>>>>> >>>>>>>>>> Thanks, >>>>>>>>>> Sujay >>>>>>>>> _______________________________________________ >>>>>>>>> m5-users mailing list >>>>>>>>> [email protected] >>>>>>>>> http://m5sim.org/cgi-bin/mailman/listinfo/m5-users >>>>>>>>> >>>>>>> >>>>>> >>>>> >>>>> _______________________________________________ >>>>> m5-users mailing list >>>>> [email protected] >>>>> http://m5sim.org/cgi-bin/mailman/listinfo/m5-users >>>> _______________________________________________ >>>> m5-users mailing list >>>> [email protected] >>>> http://m5sim.org/cgi-bin/mailman/listinfo/m5-users >>>> >>> >>> _______________________________________________ >>> m5-users mailing list >>> [email protected] >>> http://m5sim.org/cgi-bin/mailman/listinfo/m5-users >> _______________________________________________ >> m5-users mailing list >> [email protected] >> http://m5sim.org/cgi-bin/mailman/listinfo/m5-users >> > > _______________________________________________ > m5-users mailing list > [email protected] > http://m5sim.org/cgi-bin/mailman/listinfo/m5-users > _______________________________________________ m5-users mailing list [email protected] http://m5sim.org/cgi-bin/mailman/listinfo/m5-users
