| commit | fe63a898ce35baf4472195f54a0c8ab544635292 | |
| author | Matthew Dillon <dillon@apollo.backplane.com> | |
| Sun, 10 Dec 2017 22:09:03 +0000 (10 14:09 -0800) | ||
| committer | Matthew Dillon <dillon@apollo.backplane.com> | |
| Sun, 10 Dec 2017 22:09:03 +0000 (10 14:09 -0800) | ||
| tree | 57fa3cd5d7285e1c8d37147b24bab6bcf7ac9d2a | treesnapshot (tar.gz zip) |
| parent | 538e54d54d6acd2fcc448abb9bf90924fa2023fe | commitdiff |
kernel - Revert part of the contig allocation work
* Revert part of the contig allocation work. Always use the alist
allocation from the DMA reserve first, and revert to scanning the
VM page list only if it fails.
* Fixes performance problems with X.
* What this means, generally, is that we will probably need to rely
directly on the dma reserve for most of our DMA allocation and
freeing just to ensure reasonable performance. Scanning page
lists is a big lose.
Reported-by: mneumann
* Revert part of the contig allocation work. Always use the alist
allocation from the DMA reserve first, and revert to scanning the
VM page list only if it fails.
* Fixes performance problems with X.
* What this means, generally, is that we will probably need to rely
directly on the dma reserve for most of our DMA allocation and
freeing just to ensure reasonable performance. Scanning page
lists is a big lose.
Reported-by: mneumann
| sys/vm/vm_contig.c | diffblobblamehistory | |
| sys/vm/vm_page.c | diffblobblamehistory |