thiemowmde added a comment.
I did a more complex benchmark with an item with 1000 labels, 1000 descriptions, 1000 aliases (1 per language), 1000 statements, each statement with 1 main snak, 1 qualifier and 1 reference (all StringValues). This is a total of 3000 snaks. - This entity requires 4.2 MiB in memory. - Clone it via `unserialize( serialize( … ) )`, and the process requires additional 5.6 MiB. This number fluctuates with every clone, between 4 and 6 MiB. I think this is because of the way `serialize` and `unserialize` are implemented. Calling these methods obviously allocates more space on top of what the cloned entity uses in the end. - Clone it with https://github.com/wmde/WikibaseDataModel/pull/626 applied, and the process requires additional 0.5 MiB. So in this example, which should be pretty close to the worst case we have in the wikidata.org database, the patch reduces our memory footprint by solid 5 MiB. TASK DETAIL https://phabricator.wikimedia.org/T126795 EMAIL PREFERENCES https://phabricator.wikimedia.org/settings/panel/emailpreferences/ To: thiemowmde Cc: Aklapper, StudiesWorld, thiemowmde, daniel, Bene, D3r1ck01, Izno, Wikidata-bugs, aude, JeroenDeDauw, Mbch331 _______________________________________________ Wikidata-bugs mailing list Wikidata-bugs@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikidata-bugs
