Re: [PATCH v7 0/3] FDP and per-io hints
Christoph Hellwig <[email protected]>
| Newsgroups | gmane.linux.kernel.aio.general,gmane.linux.file-systems,gmane.linux.kernel.io-uring,gmane.linux.block |
|---|---|
| Message-ID | <[email protected]> |
On Thu, Oct 10, 2024 at 02:27:33PM +0200, Javier Gonzalez wrote: [full quote snipped, it would be really helpful to only quote what you actuall reference per the usual email rules] >> Data placement by-file is based on that the lifetime of a file's data >> blocks are strongly correlated. When a file is deleted, all its blocks >> will be reclaimable at that point. This requires knowledge about the >> data placement buckets and works really well without any hints >> provided. > > But we need hints to put files together. I believe you do this already, > as no placement protocol gives you unlimited separation. The per-file temperature hints do a reasonable job for that. A fully developed version of the separate write streams submitted by Kanchan would probably do even better, but for now the per-file hints seem to be enough. > Maybe you can post some patches on the parts dedicated to the VFS level > and user-space API (syscall or uring)? It's just using the existing temperature hints. -- To unsubscribe, send a message with 'unsubscribe linux-aio' in the body to [email protected]. For more info on Linux AIO, see: http://www.kvack.org/aio/ Don't email: <a href=mailto:"[email protected]">[email protected]</a>