Messages in this thread | | | Date | Wed, 30 Mar 2016 14:34:18 +0200 | From | Andres Freund <> | Subject | "perf hists browser: Support flat callchains" appears to have broken parent reporting |
| |
Hi,
4b3a3212233a - "perf hists browser: Support flat callchains" seems to have broken callchain display in tui mode when using !flat mode, or at least changed it in an unintended manner.
Llooking at the same perf.data file: perf report --tui --no-children -g before: - 16.69% swapper [kernel.kallsyms] [k] poll_idle - poll_idle + 16.65% cpuidle_enter_state + 0.04% cpuidle_enter - 3.51% swapper [kernel.kallsyms] [k] intel_idle - intel_idle + 3.49% cpuidle_enter_state + 0.03% cpuidle_enter - 1.35% postgres postgres [.] hash_search_with_hash_value - hash_search_with_hash_value - 0.32% BufTableLookup + ReadBuffer_common - 0.18% LockAcquireExtended + 0.16% LockRelationOid + 0.02% XactLockTableInsert + 0.14% FetchPreparedStatement + 0.13% CreatePortal + 0.11% RelationIdGetRelation + 0.10% GetPortalByName after: - 16.69% swapper [kernel.kallsyms] [k] poll_idle poll_idle - 3.51% swapper [kernel.kallsyms] [k] intel_idle intel_idle - 1.35% postgres postgres [.] hash_search_with_hash_value hash_search_with_hash_value - 1.18% postgres postgres [.] AllocSetAlloc AllocSetAlloc - 0.85% postgres libc-2.22.so [.] __memcpy_sse2_unaligned __memcpy_sse2_unaligned
as you can see after the aforementioned commit there's only one level of callers reported.
--stdio output isn't affected.
I can provide an example perf.data file, but it apears to reproduce with just about any profile here.
Greetings,
Andres Freund
| |