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From: Konstantin S. <kon...@gm...> - 2008-01-21 10:20:16
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On Jan 15, 2008 12:38 PM, Julian Seward <js...@ac...> wrote: > On Tuesday 15 January 2008 10:32, Konstantin Serebryany wrote: > > You mean it requires 32-bit hardware? or 32-bit-only os? or 32-bit > > executable? > > I _think_ requires 32-bit executable. > > It looks like oprofile's callgraph requires 32-bit OS. At least it started working for me only when I rebooted my box in 32-bit mode. A bit of fun: I tried to profile helgrind with vtssrun (a tool from Intel Performance Tuning Utilities). vtssrun EXPERIMENT_DIR -- valgrind ... When running usual programs, vtssrun performs stack sampling of the program and then produces nice callgraphs, flat profiles, etc. But not for valgrind -- instead of profiling valgrind with vtssrun my command line debugged the vtssrun utility with valgrind!! Both tools try to inject themselves into the same address space... LOL --kcc |