On Wed, May 12, 2021 at 9:48 AM Ævar Arnfjörð Bjarmason <avarab@xxxxxxxxx> wrote: > Optimize the startup time of git-send-email by using an amended > config_regexp() function to retrieve the list of config keys and > values we're interested in. > > For boolean keys we can handle the [true|false] case ourselves, and > the "--get" case didn't need any parsing. Let's leave "--path" and > other "--bool" cases to "git config". As noted in a preceding commit > we're free to change the config_regexp() function, it's only used by > "git send-email". > > This brings the runtime of "git send-email" from ~60-~70ms to a very > steady ~40ms on my test box. We no run just one "git config" s/no/now/ > invocation on startup instead of 8, the exact number will differ based > on the local sendemail.* config. I happen to have 8 of those set. > > This brings the runtime of t9001-send-email.sh from ~13s down to ~12s > for me. The change there is less impressive as many of those tests set > various config values, and we're also getting to the point of > diminishing returns for optimizing "git send-email" itself. > > Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@xxxxxxxxx>
