diff options
| author | George V. Neville-Neil <gnn@FreeBSD.org> | 2012-05-12 20:38:18 +0000 |
|---|---|---|
| committer | George V. Neville-Neil <gnn@FreeBSD.org> | 2012-05-12 20:38:18 +0000 |
| commit | 055173dba4a263acf10325a49eebf82915369ed2 (patch) | |
| tree | aec2772e8855e6dbaea6d8136ed0c47bcb825dee /Examples/tcl_ins_example.txt | |
| parent | 87c8f7aa3a46118212b99f0d58b18aa93c06b02a (diff) | |
Notes
Diffstat (limited to 'Examples/tcl_ins_example.txt')
| -rw-r--r-- | Examples/tcl_ins_example.txt | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/Examples/tcl_ins_example.txt b/Examples/tcl_ins_example.txt new file mode 100644 index 000000000000..6f1ba9a3d137 --- /dev/null +++ b/Examples/tcl_ins_example.txt @@ -0,0 +1,46 @@ +The following are examples of running the script tcl_ins.d + +Here it traces as Code/Tcl/func_slow.tcl executes. + +# tcl_ins.d +Tracing... Hit Ctrl-C to end. +^C + PID TYPE NAME COUNT + 16005 inst foreach_start4 1 + 16005 inst jumpTrue1 1 + 16005 inst lappendScalar1 1 + 16005 inst list 1 + 16005 inst strneq 1 + 16005 inst beginCatch4 2 + 16005 inst dup 2 + 16005 inst endCatch 2 + 16005 inst eq 2 + 16005 inst land 2 + 16005 inst storeScalarStk 2 + 16005 inst foreach_step4 4 + 16005 inst not 4 + 16005 inst loadArrayStk 5 + 16005 inst streq 7 + 16005 inst tryCvtToNumeric 8 + 16005 inst jumpFalse1 12 + 16005 inst loadScalarStk 13 + 16005 inst jump1 14 + 16005 inst pop 18 + 16005 inst invokeStk1 53 + 16005 inst add 600000 + 16005 inst concat1 600000 + 16005 inst exprStk 600000 + 16005 inst lt 600007 + 16005 inst storeScalar1 600016 + 16005 inst done 600021 + 16005 inst loadScalar1 1200020 + 16005 inst push1 4200193 + +It is showing the instructions called by Tcl as the program executes. The +larger counts toward the bottom of the display are from the looping construct +used in Code/Tcl/func_slow.tcl. + +Tracing the instructions is quite low-level and slow the target application +considerably and would probably be used only as a last resort if you have no +other indication of why CPUs are busy. + |