diff options
| author | Boris Kolpackov <boris@codesynthesis.com> | 2017-03-17 16:57:49 +0200 |
|---|---|---|
| committer | Boris Kolpackov <boris@codesynthesis.com> | 2017-03-17 16:57:49 +0200 |
| commit | b5960ebbe7236eef62620b0a07df8de93dffc81e (patch) | |
| tree | c95f4f54ca67a9886211d2c27b0a2a2fef5012e6 /build2/b-options.cxx | |
| parent | fdb3931c1948fbf9d56c98165f411aa5abf1b02d (diff) | |
Shorten scheduler queue depth, make it customizable via command line
Diffstat (limited to 'build2/b-options.cxx')
| -rw-r--r-- | build2/b-options.cxx | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/build2/b-options.cxx b/build2/b-options.cxx index d89adcf..d31868c 100644 --- a/build2/b-options.cxx +++ b/build2/b-options.cxx @@ -578,6 +578,8 @@ namespace build2 jobs_specified_ (false), max_jobs_ (), max_jobs_specified_ (false), + queue_depth_ (4), + queue_depth_specified_ (false), serial_stop_ (), no_column_ (), no_line_ (), @@ -706,6 +708,13 @@ namespace build2 << " scheduler implementation for details." << ::std::endl; os << std::endl + << "\033[1m--queue-depth\033[0m|\033[1m-Q\033[0m \033[4mnum\033[0m The queue depth as a multiplier over the number of active" << ::std::endl + << " jobs. Normally we want a deeper queue if the jobs take" << ::std::endl + << " long (for example, compilation) and shorter if they are" << ::std::endl + << " quick (for example, simple tests). The default is 4. See" << ::std::endl + << " the build system scheduler implementation for details." << ::std::endl; + + os << std::endl << "\033[1m--serial-stop\033[0m|\033[1m-s\033[0m Run serially and stop at the first error. This mode is" << ::std::endl << " useful to investigate build failures that are caused by" << ::std::endl << " build system errors rather than compilation errors. Note" << ::std::endl @@ -801,6 +810,12 @@ namespace build2 _cli_options_map_["-J"] = &::build2::cl::thunk< options, size_t, &options::max_jobs_, &options::max_jobs_specified_ >; + _cli_options_map_["--queue-depth"] = + &::build2::cl::thunk< options, size_t, &options::queue_depth_, + &options::queue_depth_specified_ >; + _cli_options_map_["-Q"] = + &::build2::cl::thunk< options, size_t, &options::queue_depth_, + &options::queue_depth_specified_ >; _cli_options_map_["--serial-stop"] = &::build2::cl::thunk< options, bool, &options::serial_stop_ >; _cli_options_map_["-s"] = |