Pull request: DMA pool updates
G'day Linus, mate
Could you pull the dmapool branch ofgit://git.kernel.org/pub/scm/linux/kernel/git/willy/misc.git please?
All the patches have been posted to linux-kernel before, and various comments (and acks) have been taken into account.
It's a fairly nice performance improvement, so would be good to get in. It's survived a few hours of *mumble* high-stress database benchmark, so I have high confidence in its stability.
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Andrew Morton
maintainerQuoted 5 lines · On Mon, 28 Jan 2008 17:11:47 -0700 Matthew Wilcox <[email protected]> wrote:
G'day Linus, mate
Could you pull the dmapool branch of
git://git.kernel.org/pub/scm/linux/kernel/git/willy/misc.gitplease?
The usual form is, I believe,
git://git.kernel.org/pub/scm/linux/kernel/git/willy/misc.git dmapool
Otherwise people get all confused and think it's an empty tree (like I just did).
Quoted 6 lines
All the patches have been posted to linux-kernel before, and various comments (and acks) have been taken into account.
It's a fairly nice performance improvement, so would be good to get in. It's survived a few hours of *mumble* high-stress database benchmark, so I have high confidence in its stability.
Could we please at least have a shortlog so we can find out what the patch titles are so we can google them so we can find out what the heck you're proposing we add to the kernel?
<does a pull, goes on an archive hunt>
It shouldn't be this hard!
There were no replies to v2 of the patch series. It all looks reasonable from a quick scan (assuming the patches are unchanged since then).
afaik these patches have been tested by nobody except thyself?
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Quoted 6 lines · Andrew Morton
The usual form is, I believe,
git://git.kernel.org/pub/scm/linux/kernel/git/willy/misc.gitdmapoolOtherwise people get all confused and think it's an empty tree (like I just did).
Sorry!
Quoted 2 lines
There were no replies to v2 of the patch series. It all looks reasonable from a quick scan (assuming the patches are unchanged since then).
I haven't changed them, correct.
Quoted 1 line
afaik these patches have been tested by nobody except thyself?
I've tested them myself, then I sent them to the perf team who ran the (4 hour long) benchmark, and they reported success. As with many patches these days, they sank into a pit of indifference. Perhaps I need to take a leaf from my former government's book and sex up my patch descriptions a bit.
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Intel are signing my paycheques ... these opinions are still mine "Bill, look, we understand that you're interested in selling us this operating system, but compare it to ours. We can't possibly take such a retrograde step." -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to [email protected]. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"[email protected]"> [email protected] </a>
Andrew Morton
maintainerQuoted 5 lines · On Mon, 28 Jan 2008 19:45:25 -0700 Matthew Wilcox <[email protected]> wrote:
Quoted 1 line
afaik these patches have been tested by nobody except thyself?
I've tested them myself, then I sent them to the perf team who ran the (4 hour long) benchmark, and they reported success. As with many patches these days, they sank into a pit of indifference.
I like to think that's because everyone is all fired up about bugfixes and the regression reports. heh.
It's a simple matter for me to add another git tree, which gets things a bit more exposure.
Quoted 3 lines
Perhaps I need to
take a leaf from my former government's book and sex up my patch descriptions a bit.
Well these two pulls came with effectively no description at all. Put yourself in Linus's position...
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Quoted 11 lines · Matthew Wilcox
G'day Linus, mate
Could you pull the dmapool branch of
git://git.kernel.org/pub/scm/linux/kernel/git/willy/misc.gitplease?All the patches have been posted to linux-kernel before, and various comments (and acks) have been taken into account.
It's a fairly nice performance improvement, so would be good to get in. It's survived a few hours of *mumble* high-stress database benchmark, so I have high confidence in its stability.
I haven't looked at this yet but, I've been doing some work with the IOMMU performance impacts on DMA operations. DMApooling could provide a way to mitigate some of the spankage gotten when using IOMMU's.
--mgross
Quoted 12 lines
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-- Intel are signing my paycheques ... these opinions are still mine "Bill, look, we understand that you're interested in selling us this operating system, but compare it to ours. We can't possibly take such a retrograde step." -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to [email protected]. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"[email protected]"> [email protected] </a>