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Overview
Comment: | timerate: avoid divide by zero by no iterations in measurement cycle (e. g. count is 0) |
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Timelines: | family | ancestors | descendants | both | core-8-5-branch |
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SHA3-256: |
c9ac395fd2824b6486ad04f46f3f5af8 |
User & Date: | sebres 2019-04-01 13:51:46.235 |
Context
2019-04-01
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13:53 | closes [1a3fa1232e306a44], test case cmdMZ-6.5 fixed to cover float value by iteration per second check-in: c925d4759d user: sebres tags: core-8-5-branch | |
13:51 | timerate: avoid divide by zero by no iterations in measurement cycle (e. g. count is 0) check-in: c9ac395fd2 user: sebres tags: core-8-5-branch | |
2019-03-27
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20:13 | Update TZ info to tzdata2019a check-in: 32229a5063 user: jan.nijtmans tags: core-8-5-branch | |
Changes
Changes to generic/tclCmdMZ.c.
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4248 4249 4250 4251 4252 4253 4254 4255 4256 4257 4258 4259 4260 4261 | middle -= start; /* execution time in microsecs */ #ifdef TCL_WIDE_CLICKS /* convert execution time in wide clicks to microsecs */ middle *= TclpWideClickInMicrosec(); #endif /* if not calibrate */ if (!calibrate) { /* minimize influence of measurement overhead */ if (overhead > 0) { /* estimate the time of overhead (microsecs) */ Tcl_WideUInt curOverhead = overhead * count; | > > > > > | 4248 4249 4250 4251 4252 4253 4254 4255 4256 4257 4258 4259 4260 4261 4262 4263 4264 4265 4266 | middle -= start; /* execution time in microsecs */ #ifdef TCL_WIDE_CLICKS /* convert execution time in wide clicks to microsecs */ middle *= TclpWideClickInMicrosec(); #endif if (!count) { /* no iterations - avoid divide by zero */ objs[0] = objs[2] = objs[4] = Tcl_NewWideIntObj(0); goto retRes; } /* if not calibrate */ if (!calibrate) { /* minimize influence of measurement overhead */ if (overhead > 0) { /* estimate the time of overhead (microsecs) */ Tcl_WideUInt curOverhead = overhead * count; |
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4301 4302 4303 4304 4305 4306 4307 4308 4309 | } else { objs[4] = Tcl_NewWideIntObj(val); } } else { objs[4] = Tcl_NewWideIntObj((count / middle) * 1000000); } /* estimated net execution time (in millisecs) */ if (!calibrate) { | > > | > > > | 4306 4307 4308 4309 4310 4311 4312 4313 4314 4315 4316 4317 4318 4319 4320 4321 4322 4323 4324 4325 4326 4327 | } else { objs[4] = Tcl_NewWideIntObj(val); } } else { objs[4] = Tcl_NewWideIntObj((count / middle) * 1000000); } retRes: /* estimated net execution time (in millisecs) */ if (!calibrate) { if (middle >= 1) { objs[6] = Tcl_ObjPrintf("%.3f", (double)middle / 1000); } else { objs[6] = Tcl_NewWideIntObj(0); } TclNewLiteralStringObj(objs[7], "nett-ms"); } /* * Construct the result as a list because many programs have always parsed * as such (extracting the first element, typically). */ |
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