dumpBackup.php: offer option to use 7za -mx=4 instead of -mx=5
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Description

See https://github.com/Wikia/app/pull/5799 : for some XML dumps, mx=4 is ten times faster than the default mx=5, for a negligible loss in compression.

I've tried passing the method with things like

php dumpBackup.php --current --output=7zip:'-mx3 3.7z'

but it seems wfEscapeShellArg() does its job. ;)

	Subject	Repo	Branch	Lines +/-
	Add 7zip compression level param to BackupDumper	mediawiki/core	master	+19 -4

Status	Assigned	Task
Resolved	Unicornisaurous	T78669 dumpBackup.php: offer option to use 7za -mx=4 instead of -mx=5
Resolved	Unicornisaurous	T122587 Make dumpBackup.php subclass Maintenance
Resolved	Unicornisaurous	T122588 Support multiple occurrences of options in Maintenance class

Nemo_bis raised the priority of this task from to Needs Triage.

Nemo_bis triaged this task as Low priority.

Nemo_bis updated the task description. (Show Details)

Nemo_bis changed Security from none to None.

Nemo_bis added subscribers: Nemo_bis, TTO.

I claimed this on GCI.

Change 261755 had a related patch set uploaded (by Unicornisaurous):
Add 7zip compression level param to BackupDumper

Unicornisaurous added a blocking task: T122587: Make dumpBackup.php subclass Maintenance.

OMG look what I triggered. :)

Change 261755 merged by jenkins-bot:
Add 7zip compression level param to BackupDumper

yay :)