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https://issues.apache.org/jira/browse/TS-46?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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John Plevyak updated TS-46:
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Attachment: ts-partition-size-jp-v4.patch
This patch includes support for do_io_pread for efficient support of Range
requests.
It also includes support for large objects, although full support will require
changing
the VIO and VConnection interfaces to use ink64 sizes.
> increase cache partition size to avoid write-aggregation seeks
> --------------------------------------------------------------
>
> Key: TS-46
> URL: https://issues.apache.org/jira/browse/TS-46
> Project: Traffic Server
> Issue Type: Improvement
> Components: Cache
> Environment: all
> Reporter: John Plevyak
> Attachments: ts-partition-size-jp-v1.patch,
> ts-partition-size-jp-v2.patch, ts-partition-size-jp-v3.patch,
> ts-partition-size-jp-v4.patch
>
> Original Estimate: 168h
> Remaining Estimate: 168h
>
> Currently cache partitions are 8GB. Because each has a write pointer, this
> means on a decent size
> disk there are a hundred or more write pointers which means a lot of seeking
> for writes
> (which really should be aggregated). The proposal is to make it possible to
> have large partitions
> (up to .5 PB) by increasing the side of the cache directory entry from 8 to
> 10 bytes and using the
> additional bits for the offset.
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