issue_comments: 807126680

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html_url issue_url id node_id user created_at updated_at author_association body reactions performed_via_github_app issue
https://github.com/pydata/xarray/issues/2857#issuecomment-807126680 https://api.github.com/repos/pydata/xarray/issues/2857 807126680 MDEyOklzc3VlQ29tbWVudDgwNzEyNjY4MA== 2418513 2021-03-25T17:17:48Z 2021-03-25T17:18:21Z NONE

OK, we might check if that depends on the data size or on the number of groups, or both.

It scales with data size it seems, but: even if you reduce data size to 1 element, after 50 iterations a single write goes up to 150ms already (whereas it's a few milliseconds in an empty file). These 150ms is the pure 'file traversal' etc part; the rest (of the 2 seconds) is the part where it seemingly reads stuff - which scales with data. Ideally it should just stay at <10ms all the time.

 
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