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could license it (range.c; every way's answers the executor's and the stitched build's, for all 61,285 points): a code point's machine instructions in the executor 14,488, stitched 8,144, exact (registers, a plain call; doubles, fmod, the finite and whole checks, the tree read, the budget) 2,474, integers 1,587, a flat column 1,083, both 226, C 129; a round of halving exact 217, both 19.8, C 11.3: the bar (3x C's round) missed by exact, passed by both
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address every 100,003 user instructions from perf_event_open's ring, the answers checked first; where.py names each by addr2line's inlined chain: the step() case its line is in, or the function outside): the app's 40,236 a code point are dispatch 30.6% (the switch and run_calls' loop), lists built 17.3%, numbers 13.5%, lists read 13.0%, moves 9.0%, calls 7.1%, malloc 4.0%; no mechanism near most; range()'s binary search alone 14,489 a point (36%, variant v0r): 11.4 rounds of about 1,270, of which floor division with fmod 186 and a stored read 240
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the numbers: (a) the executor runs 549.9 instructions a code point (the budget's 1,774 counts blocks as written), moves 205.5, constants 76.7 and reads of the same list, version, field and place in an event 16.4, so merging leaves 251.3: 2.19x, the bar 4x (ops-count.patch); (b) the executor's own steps stitched on constant instructions, a function a basic block (stitch.c, native-hook.patch), answers checked: 40,703 to 28,601 machine instructions a point, 15,566 to 11,850 cycles: 1.31x, the bar 3x (cost.c); Vega's C 220 and 82; where it goes: dispatch 22 machine instructions an instruction of 74, an empty handler 1,583 a point, the lists built 22,651 more, the Text record 2,951, decide 12,988 (events.c, variants); a stored list's read 331, a block fn's call 1,375, an arithmetic step 248 in the executor and 35 in batches (unit.c, units)
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