[Chromium-dev] System Check for build performance

[Joe S. <md...@ya...>]

System specs attached from cpu-z.  I turned off malware scanner and anti-virus and results were the same as with them on.  Does this look right?  Is there other gn settings I should use.  Just trying to benchmark this system.
C:\temp\chromium\src>gn gen out/Default --args="is_component_build = true enable_nacl = false blink_symbol_level = 0 v8_symbol_level = 0 symbol_level = 0"
C:\temp\chromium\src>autoninja -C out\Default base"C:\DevTools\depot_tools\ninja.exe" -C out\Default base -j 18 -d statsninja: Entering directory `out\Default'ninja: no work to do.metric                  count   avg (us)        total (ms).ninja parse            6442    1668.2          10746.8canonicalize str        3185939 0.0             1.6canonicalize path       3190182 0.0             1.1lookup node             3225989 0.0             1.4.ninja_log load         1       47866.0         47.9.ninja_deps load        1       71043.0         71.0node stat               9734    37.8            368.0depfile load            24      272.9           6.5
path->node hash load 0.93 (244785 entries / 262144 buckets)    Longest build steps:         355.5 weighted s to build obj/v8/cppgc_base/heap-state.obj (6398.8 s elapsed time)         360.4 weighted s to build obj/v8/cppgc_base/heap-consistency.obj (6486.4 s elapsed time)         364.4 weighted s to build obj/v8/cppgc_base/free-list.obj (6559.3 s elapsed time)         364.8 weighted s to build obj/v8/cppgc_base/heap-space.obj (6566.5 s elapsed time)         367.3 weighted s to build obj/v8/cppgc_base/heap-object-header.obj (6611.4 s elapsed time)         367.7 weighted s to build obj/v8/cppgc_base/explicit-management.obj (6617.9 s elapsed time)         368.6 weighted s to build obj/v8/cppgc_base/heap-page.obj (6635.5 s elapsed time)         369.2 weighted s to build obj/v8/cppgc_base/heap-statistics-collector.obj (6645.4 s elapsed time)         370.0 weighted s to build obj/components/url_matcher/url_matcher/url_matcher.obj (6659.6 s elapsed time)         370.6 weighted s to build obj/v8/cppgc_base/heap.obj (6670.5 s elapsed time)    Time by build-step type:         314.2 s weighted time to generate 49 .d.ts files (5655.4 s elapsed time sum)         421.5 s weighted time to generate 327 type_mappings files (7586.7 s elapsed time sum)         692.0 s weighted time to generate 163 .pak.info files (12129.2 s elapsed time sum)         893.4 s weighted time to generate 1521 .inputdeps.stamp files (15954.8 s elapsed time sum)        1379.4 s weighted time to generate 496 .pb.obj files (24825.6 s elapsed time sum)        1669.3 s weighted time to generate 427 .mojom.obj files (30043.2 s elapsed time sum)        2554.4 s weighted time to generate 1241 mojo files (45652.9 s elapsed time sum)        6013.1 s weighted time to generate 942 .mojom-shared.obj files (108230.2 s elapsed time sum)        6026.7 s weighted time to generate 6165 .stamp files (102861.3 s elapsed time sum)       25460.8 s weighted time to generate 12451 .obj files (458196.3 s elapsed time sum)    47342.8 s weighted time (845172.4 s elapsed time sum, 17.9x parallelism)    27137 build steps completed, average of 0.57/s