Michael Brown b2c7b6a85e [intel] Push new RX descriptors in batches ...

Inside a virtual machine, writing the RX ring tail pointer may incur a
substantial overhead of processing inside the hypervisor.  Minimise
this overhead by writing the tail pointer once per batch of
descriptors, rather than once per descriptor.

Profiling under qemu-kvm (version 1.6.2) shows that this reduces the
amount of time taken to refill the RX descriptor ring by around 90%.

Signed-off-by: Michael Brown <mcb30@ipxe.org>

2014-04-27 23:14:48 +01:00

..

bitbash

[bitbash] Add optional open() and close() methods for bit-bashing interfaces

2012-08-24 17:26:10 +01:00

block

[settings] Explicitly separate the concept of a completed fetched setting

2013-12-05 00:37:02 +00:00

bus

[settings] Explicitly separate the concept of a completed fetched setting

2013-12-05 00:37:02 +00:00

infiniband

[hermon] Use PCI VPD for non-volatile option storage

2012-10-25 08:24:00 -07:00

linux

[linux] Apply MAC address prior to registering network device

2013-09-03 02:02:58 +01:00

net

[intel] Push new RX descriptors in batches

2014-04-27 23:14:48 +01:00

nvs

[legal] Update FSF mailing address in GPL licence texts

2012-07-20 19:55:45 +01:00