| 12 Feb 2025 |
K900 | In reply to@motiejus:jakstys.lt Unrelated: can I start lobbying a CFLAG -fno-omit-frame-pointer, at least on x86_64-linux? So I don't need to do such partial hacks. Some background reading by Brendan Gregg. We tend to use debuginfo for this instead | 08:57:01 |
motiejus | Can you elaborate? | 09:07:19 |
K900 | We have debuginfo for most hot path packages | 10:00:19 |
K900 | And you can use that with perf to get proper unwinding without frame pointers | 10:00:33 |
K900 | (at the cost of some post-processing time) | 10:00:41 |
motiejus | Great! I see Python is in the list that has separate debuginfo pkgs; I'll poke around. | 15:56:01 |
motiejus | back to my argument: although the same can be achieved with dbginfo for select packages and is hugely helpful for gdb, but in profiling use case, we don't need to bear the cost of separate dbginfo -- the size and binary is almost the same with frame pointers. :) | 15:56:58 |
motiejus | * back to the original argument about frame pointers: although the same can be achieved with dbginfo for select packages and is hugely helpful for gdb, but in profiling use case, we don't need to bear the cost of separate dbginfo -- the size and binary is almost the same with frame pointers. :) | 16:01:15 |
motiejus | * back to the original argument about frame pointers: yes, the same can be achieved with dbginfo for select packages and is hugely helpful for gdb. However, in profiling use case, we don't need to bear the cost of separate dbginfo -- the size and binary is almost the same with frame pointers. :)e | 16:01:33 |
motiejus | * back to the original argument about frame pointers: yes, the same can be achieved with dbginfo for select packages and is hugely helpful for gdb. However, in profiling use case, we don't need to bear the cost of separate dbginfo -- the size and binary is almost the same with frame pointers. :) | 16:01:39 |
motiejus | e.g. in my case, this flag is not available on OpenMP, of which I'd like to have stack frames of in the flamegraph | 16:03:22 |
| Kira changed their display name from kira to Kira. | 19:59:42 |
@hexa:lossy.network | 02:00.0 System peripheral: Global Unichip Corp. Coral Edge TPU
| 20:15:00 |
@hexa:lossy.network | [ 20.102983] apex 0000:02:00.0: Apex performance not throttled due to temperature
| 20:15:50 |