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baf1395d7d
They turned out to have a zero hit rate, making them useless.
compiler/make.dependencies.m:
Add code to use the two new caches, indirect_imports_non_intermod
and anc0_dir1_indir2_non_intermod. I got statistics on their
performance while they were enabled, but since their hit rate was zero,
this diff includes them only in a commented-out form.
Note that adding the second cache required adding a new dep_spec,
which remains, since it shouldn't affect performance at all.
compiler/make.deps_cache.m:
Disable the those two caches.
Fix an issue where the original statistics-gathering code
mixed up hits and misses.
Include the statistics gathered in course of implementing this diff.
tools/make_deps_cache_stats:
Update this script to fix the hit/miss issue, and to print more info.
44 lines
1.5 KiB
Awk
Executable File
44 lines
1.5 KiB
Awk
Executable File
#!/usr/bin/awk -f
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# vim: ft=awk ts=4 sw=4 et
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#
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# This script summarizes the contents of the MAKE_DEPS_CACHE_STATS
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# files generated by the conditionally-enabled statistics-gathering code
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# at the end of compiler/make.deps_cache.m.
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#
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NF == 3 {
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cache = $1;
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cur_lookups = $2;
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cur_misses = $3;
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cur_hits = cur_lookups - cur_misses;
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caches[cache] += 1;
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lookups[cache] += cur_lookups;
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misses[cache] += cur_misses;
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hits[cache] += cur_hits;
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overall_lookups += cur_lookups;
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overall_hits += cur_hits;
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overall_misses += cur_misses;
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# printf "EXEC %s %d\n", cache, caches[cache];
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}
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END {
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overall_hits = overall_lookups - overall_misses;
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overall_hit_rate = (100 * overall_hits) / overall_lookups;
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printf "number of lookups: %12d\n", overall_lookups;
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printf "number of hits: %12d\n", overall_hits;
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printf "number of misses: %12d\n", overall_misses;
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printf "hit %: %6.2f\n\n", overall_hit_rate;
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printf "----------------------------------------------------------\n\n";
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printf "%-30s %6s %8s %8s %8s %6s\n\n",
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"cache", "#exec", "#lookup", "#hit", "#miss", "hit%";
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for (cache in caches) {
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hit_rate[cache] = (100 * hits[cache]) / lookups[cache];
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printf "%-30s %6d %8d %8d %8d %6.2f\n",
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cache, caches[cache], lookups[cache],
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hits[cache], misses[cache], hit_rate[cache];
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}
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}
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