PIX Timing Captures require full PDBs
PIX Timing Captures require a title’s PDBs to be generated using the /DEBUG:FULL linker switch. PDBs generated with the /DEBUG:FASTLINK linker switch are not sufficient. Note that, depending on the version of Visual Studio you are using, the linker switch /DEBUG specified without the FULL or FASTLINK option, may default to FASTLINK.
I realized the other day that PIX isn’t displaying a warning message if it finds a FASTLINK PDB. We’ll add a warning to PIX in an upcoming release, but in the meantime I thought I’d make a note of it here as a few customers have contacted us recently about this issue.
More details can be found in Configuring PIX to access PDBs for CPU captures.