On Tue, Aug 18, 2009 at 9:07 AM, Peng Du wrote:
>
> Thanks for the hints. The penalty is expected. I've played with PIN and
> its pinatrace and MemTrace tools for a while. They worked and the
> performance is not too bad, though a bit slower than Valgrind.
That's interesting. The conventional wis
> Now I need a very simple memory read/write counting tool, just like
> lackey. But the tool has to be fast.
Memory is not simple any more. You must precisely define what is a read
and what is a write. For example, what is a cache hit (level 1 [L1])?
An L2 hit? L3? Coalesced consecutive writes
Nick
Thanks for the hints. The penalty is expected. I've played with PIN and
its pinatrace and MemTrace tools for a while. They worked and the
performance is not too bad, though a bit slower than Valgrind.
I need the virtual address of the read/write. Hence, HW counters can't
do the job. I did c
On Tue, Aug 18, 2009 at 7:18 AM, Peng Du wrote:
> Hello, everyone
>
> A newbie question, according to Valgrind's manual for the lackey tool:
>
> "It (lackey) could be made to run a lot faster by doing a slightly more
> sophisticated job of the instrumentation ..."
>
> Now I need a very simple memor
Hello, everyone
A newbie question, according to Valgrind's manual for the lackey tool:
"It (lackey) could be made to run a lot faster by doing a slightly more
sophisticated job of the instrumentation ..."
Now I need a very simple memory read/write counting tool, just like
lackey. But the tool h
On Thu, Aug 13, 2009 at 1:15 PM, Michel
Audette wrote:
> See example below. I don't recall details of offending instructions
> being replaced by ??? in the past. Is this a new option that I should
> be setting, or an indication of a spurious error?
>
> ==27271== Use of uninitialised value of size 8
Michel Audette writes:
> Hi Tom,
>
> thanks for your continued support.
np, happy to chime in.
Do note that I'm no valgrind dev though, just an interested user. As
such, I've cc'd this back to valgrind-users to make sure someone more
knowledgeable will read && correct any errors I make; hope y
