diff options
| author | Stefan Hajnoczi <stefanha@redhat.com> | 2023-05-01 13:34:43 -0400 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2023-05-10 14:16:54 +0200 |
| commit | 58a2e3f5c37be02dac3086b81bdda9414b931edf (patch) | |
| tree | c7d848ec1ee79f0b784decade1800867e67f0315 /scripts | |
| parent | e19b157f3c66c44e3b89cb50a2030f0187b968e9 (diff) | |
block: compile out assert_bdrv_graph_readable() by default
reader_count() is a performance bottleneck because the global
aio_context_list_lock mutex causes thread contention. Put this debugging
assertion behind a new ./configure --enable-debug-graph-lock option and
disable it by default.
The --enable-debug-graph-lock option is also enabled by the more general
--enable-debug option.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20230501173443.153062-1-stefanha@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'scripts')
| -rw-r--r-- | scripts/meson-buildoptions.sh | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/scripts/meson-buildoptions.sh b/scripts/meson-buildoptions.sh index 34d82dec53..2805d1c145 100644 --- a/scripts/meson-buildoptions.sh +++ b/scripts/meson-buildoptions.sh @@ -23,6 +23,8 @@ meson_options_help() { printf "%s\n" ' QEMU' printf "%s\n" ' --enable-cfi Control-Flow Integrity (CFI)' printf "%s\n" ' --enable-cfi-debug Verbose errors in case of CFI violation' + printf "%s\n" ' --enable-debug-graph-lock' + printf "%s\n" ' graph lock debugging support' printf "%s\n" ' --enable-debug-mutex mutex debugging support' printf "%s\n" ' --enable-debug-stack-usage' printf "%s\n" ' measure coroutine stack usage' @@ -254,6 +256,8 @@ _meson_option_parse() { --datadir=*) quote_sh "-Ddatadir=$2" ;; --enable-dbus-display) printf "%s" -Ddbus_display=enabled ;; --disable-dbus-display) printf "%s" -Ddbus_display=disabled ;; + --enable-debug-graph-lock) printf "%s" -Ddebug_graph_lock=true ;; + --disable-debug-graph-lock) printf "%s" -Ddebug_graph_lock=false ;; --enable-debug-mutex) printf "%s" -Ddebug_mutex=true ;; --disable-debug-mutex) printf "%s" -Ddebug_mutex=false ;; --enable-debug-stack-usage) printf "%s" -Ddebug_stack_usage=true ;; |