TBM2 runtime stats currently names Histograms like Total, Blink C++, GC-Background-Other, etc. There is a hierarchy to these names, but it is not accessible in v2spa because they don't use colons. Mythri has prepared a CL to rename these Histograms using colons so that v2spa can group them correctly:
https://chromium-review.googlesource.com/c/catapult/+/1221767

This bug will track migrating the existing data in the chromeperf dashboard from the old names to the new names. Admins can migrate test paths using patterns like */*/*/Total/* so we don't need to manually enumerate each suite x bot x test case. However, names like 'Total' might be used by other test suites. In order to avoid accidentally migrating names for the wrong test suites, we should enumerate the test suite names that use the runtimeStatsMetric. Codesearch turns up these two benchmarks:
v8.runtime_stats.top_25
wasm

Mythri: do you know of any other test suites that run the runtimeStatsMetric?

In order to minimize confusion, I'd like to migrate the data shortly after Mythri's CL lands, so I'd like to have a table mapping old names to new names that I can copy into a script in dev_console.

Mythri: please check this spreadsheet is complete and correct:
https://docs.google.com/spreadsheets/d/1M82mhf18BaToInrXN-QZqcXICMgOppotQ-6TnNSDmqE/edit#gid=0


Simon: any gotchas to beware before I call _MigrateTestBegin?