In Moodle 2.7 and up under Site administration / Plugins / Logging / Standard log there is the "Write buffer size" setting (logstore_standard | buffersize). It defaults to the value of 50. But 50 what? Megabytes?
What is this write buffer?
The documentation link at the bottom of that page in Moodle points to https://docs.moodle.org/27/en/admin/setting/logsettingstandard, which does not exist.
Neither does: https://docs.moodle.org/27/en/admin/setting/logsettinglegacy or https://docs.moodle.org/27/en/admin/setting/managelogging
And https://docs.moodle.org/dev/Logging_2 doesn't contain any info about that "Write buffer size". So, what is this "Write buffer size"? And how should we use it? When should an admin increase or decrease that default 50 value?