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| author |   jakemsr <jakemsr@openbsd.org> | 2009-11-26 15:34:15 +0000 |
|---|---|---|
| committer | jakemsr <jakemsr@openbsd.org> | 2009-11-26 15:34:15 +0000 |
| commit | 19ff40b3008b9b8a26d0130790a2db76d17df7b2 (patch) | |
| tree | 8d8b3e02c2eff7cfcf84e2fd0f53cb04d550aaf5 /sys/dev/pci/if_em.c | |
| parent | Handle the possibility of partial mouse reads, and fix a comment while here. (diff) | |
| download | wireguard-openbsd-19ff40b3008b9b8a26d0130790a2db76d17df7b2.tar.xz wireguard-openbsd-19ff40b3008b9b8a26d0130790a2db76d17df7b2.zip | |
greatly reduce latency and kill some XXXs:
* reduce number of outstanding USB xfers: 6 -> 3
* reduce number of USB frames per xfer: 10 -> 2
* if the device uses wMaxPacketSize frame sizes that are longer than
1 ms, allow 1 frame per xfer
* instead of making blocksizes big enough to hold all outstanding
xfers, just make it big enough to hold one xfer
* calculate blocksizes a little better
* be more careful to let the upper layer know exactly when a block
has been moved in/out of the upper layer buffer
ok ratchov
Diffstat (limited to 'sys/dev/pci/if_em.c')
0 files changed, 0 insertions, 0 deletions