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Overview
Comment: | Add a simple TCL script for summing cachegrind information for each VDBE opcode. |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA1: |
96cf821b6a69e2e8df33271b7bb674bd |
User & Date: | drh 2016-05-20 23:51:14.900 |
Original Comment: | Add a simple TCL script for summing cachegrind information for each VDBE opcdoe. |
Context
2016-05-21
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00:45 | Add the shell-script used for routine performance testing. (check-in: 8e366f18f5 user: drh tags: trunk) | |
2016-05-20
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23:51 | Add a simple TCL script for summing cachegrind information for each VDBE opcode. (check-in: 96cf821b6a user: drh tags: trunk) | |
21:40 | Another optimization on the OP_Column opcode. (check-in: 1765672c25 user: drh tags: trunk) | |
Changes
Added tool/opcodesum.tcl.
> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 | #!/usr/bin/tclsh # # Run this script, redirecting input from cachegrind output, to compute the # number of CPU cycles used by each VDBE opcode. # # The cachegrind output should be configured so that it reports a single # column of Ir at the left margin. Ex: # # cg_annotation --show=Ir --auto=yes cachegrind.out.* | tclsh opcodesum.tcl # set currentop x set ncycle(x) 0 while {![eof stdin]} { set line [string map {\173 x \175 x \042 x} [gets stdin]] if {[regexp { \. case OP_.*:} $line]} { regexp {OP_(.+):} $line all currentop set ncycle($currentop) 0 } elseif {[lindex $line 1]=="default:" && [regexp {really OP_Noop and OP_Explain} $line]} { break } elseif {[lindex $line 0]!="."} { regsub -all {[^0-9]} [lindex $line 0] {} n if {$n!=""} {incr ncycle($currentop) $n} } } unset ncycle(x) set results {} foreach op [lsort [array names ncycle]] { if {$ncycle($op)==0} continue lappend results [list $ncycle($op) $op] } foreach entry [lsort -index 0 -int -decr $results] { puts [format {%-16s %10d} [lindex $entry 1] [lindex $entry 0]] } |