On 31/05/19 7:44 PM, Arnaldo Carvalho de Melo wrote: > Em Mon, May 20, 2019 at 02:37:24PM +0300, Adrian Hunter escreveu: >> Enhance the "All branches" and "Selected branches" reports to display IPC >> information if it is available. > > So, testing this I noticed that it all starts with the left arrow in every > line, that should mean there is some tree there, i.e. look at all those ▶ > symbols: > > Time CPU Command PID TID Branch Type In Tx Insn > Cnt Cyc Cnt IPC Branch > ▶ 187836112195670 7 simple-retpolin 23003 23003 trace begin No 0 > 0 0 0 unknown (unknown) -> 7f6f33d4f110 _start > (ld-2.28.so) > ▶ 187836112195987 7 simple-retpolin 23003 23003 trace end No 0 > 883 0 7f6f33d4f110 _start (ld-2.28.so) -> 0 unknown (unknown) > ▶ 187836112199189 7 simple-retpolin 23003 23003 trace begin No 0 > 0 0 0 unknown (unknown) -> 7f6f33d4f110 _start > (ld-2.28.so) > ▶ 187836112199189 7 simple-retpolin 23003 23003 call No 0 > 0 0 7f6f33d4f113 _start+0x3 (ld-2.28.so) -> 7f6f33d4ff50 > _dl_start (ld-2.28.so) > ▶ 187836112199544 7 simple-retpolin 23003 23003 trace end No 17 > 996 0.02 7f6f33d4ff73 _dl_start+0x23 (ld-2.28.so) -> 0 unknown > (unknown) > ▶ 187836112200939 7 simple-retpolin 23003 23003 trace begin No 0 > 0 0 0 unknown (unknown) -> 7f6f33d4ff73 _dl_start+0x23 > (ld-2.28.so) > ▶ 187836112201229 7 simple-retpolin 23003 23003 trace end No 1 > 816 0.00 7f6f33d4ff7a _dl_start+0x2a (ld-2.28.so) -> 0 unknown > (unknown) > ▶ 187836112203500 7 simple-retpolin 23003 23003 trace begin No 0 > 0 0 0 unknown (unknown) -> 7f6f33d4ff7a _dl_start+0x2a > (ld-2.28.so) > > But if you click on it, that ▶ disappears and a new click doesn't make it > reappear, looks buggy, but seems like a minor oddity that will not prevent me > from applying it now, please check and provide a fix on top of this,
The arrow is to display disssassembly, but only if xed is installed and the object is in the buildid cache. Unfortunately, it is not efficient to determine if there is anything to expand before the user clicks.
