Histogram Storage.BlobItemSize.CacheEntry is unmapped |
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Issue descriptionThe histogram 'Storage.BlobItemSize.CacheEntry' is present in Chromium source code but does not appear in histograms.xml. This means that data is collected for the histogram but nothing useful is done with it. The histogram was defined in storage/browser/blob/blob_storage_context.cc at line 341. https://cs.chromium.org/chromium/src/storage/browser/blob/blob_storage_context.cc?l=341 It may have moved by the time you read this. Please remove the histogram 'Storage.BlobItemSize.CacheEntry' from the source code. If it was very recently added, it may be worth adding it to histograms.xml instead, but probably not. This bug was automatically assigned based on git blame information. If you are not the correct assignee for this bug, please delete the histogram anyway.
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Nov 20 2017
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Nov 21 2017
Routing...
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Nov 27 2017
https://codereview.chromium.org/1108083002 added the code for this histogram. On one hand since apparently we've never looked at the data deleting the histogram might make sense, but it seems weirdly inconsistent if that would be the only element type without UMA histograms.
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Nov 27 2017
Ah yeah it looks like Gavin forgot to add the histograms xml file to the change. This is a bug, we would like to know our size distribution disk-cache backed blobs.
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May 10 2018
#5 If you need the information, please add the histogram to histograms.xml.
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Jun 15 2018
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Jun 15 2018
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Aug 2
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Jan 2
Removed these histograms, yay! |
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Comment 1 by holte@chromium.org
, Aug 22 2017Labels: Hotlist-Metrics