digitalmars.D.learn - Profile Ouput
- Mike Parker (18/18) Jul 14 2015 Perhaps my googlefu has failed me, but I can find anything
- Mike Parker (4/9) Jul 15 2015 OK, I've finally realized that the top part of trace.log is an
- jmh530 (5/18) Jul 15 2015 I've been confused by this too. The only thing I can find is this
- Mike Parker (4/9) Jul 15 2015 Yeah, I eventually stumbled on to that, but it unfortunately
- Mike Parker (5/10) Jul 15 2015 Got it now. The 2736 and 471 are the call tree time and function
Perhaps my googlefu has failed me, but I can find anything describing the output of DMD's -profile switch. I get that trace.def is a list of all functions called and I understand the table at the bottom of trace.log. What I'm not sure about is everything above the table in trace.log, stuff like this: ------------------ 4000 _Dmain _D4main6selectFZk 4000 2736 471 4000 _D3std6random27__T7uniformVAyaa2_5b29TkTkZ7uniformFNfkkZk ------------------ I get that it's telling me that the function main.select is called 4000 times and that it, in turn, calls std.random.uniform 4000 times. What I not clear about is the 2736 and the 471. They match none of the times int the table below, where main.select has a Tree Time of 823 and a Func Time of 141. I also don't understand the 4000 next to _Dmain, as it's only called once. If anyone could clarify, or point me somewhere that explains it, I'd appreciate it.
Jul 14 2015
On Tuesday, 14 July 2015 at 13:35:40 UTC, Mike Parker wrote:------------------ 4000 _Dmain _D4main6selectFZk 4000 2736 471 4000 _D3std6random27__T7uniformVAyaa2_5b29TkTkZ7uniformFNfkkZk ------------------OK, I've finally realized that the top part of trace.log is an inverted (with main at the bottom) call tree. I've got everything now except that 2736 and 471 on the second line. Anyone?
Jul 15 2015
On Wednesday, 15 July 2015 at 11:47:53 UTC, Mike Parker wrote:On Tuesday, 14 July 2015 at 13:35:40 UTC, Mike Parker wrote:I've been confused by this too. The only thing I can find is this http://www.digitalmars.com/ctg/trace.html I think it would be cool to write something that takes the output and puts it in a prettier format.------------------ 4000 _Dmain _D4main6selectFZk 4000 2736 471 4000 _D3std6random27__T7uniformVAyaa2_5b29TkTkZ7uniformFNfkkZk ------------------OK, I've finally realized that the top part of trace.log is an inverted (with main at the bottom) call tree. I've got everything now except that 2736 and 471 on the second line. Anyone?
Jul 15 2015
"Mike Parker" <aldacron gmail.com> On Wednesday, 15 July 2015 at 18:02:11 UTC, jmh530 wrote:I've been confused by this too. The only thing I can find is this http://www.digitalmars.com/ctg/trace.html I think it would be cool to write something that takes the output and puts it in a prettier format.Yeah, I eventually stumbled on to that, but it unfortunately tells me nothing I don't already know. I suppose I'll just email Walter and ask him.
Jul 15 2015
On Tuesday, 14 July 2015 at 13:35:40 UTC, Mike Parker wrote:------------------ 4000 _Dmain _D4main6selectFZk 4000 2736 471 4000 _D3std6random27__T7uniformVAyaa2_5b29TkTkZ7uniformFNfkkZk ------------------Got it now. The 2736 and 471 are the call tree time and function call time, respectively, in *ticks*. They are converted to seconds then displayed as milliseconds int the table at the bottom of the file.
Jul 15 2015