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[Qemu-devel] [PATCH v2 0/4] virtio-net: More configurability and bh hand
From: |
Alex Williamson |
Subject: |
[Qemu-devel] [PATCH v2 0/4] virtio-net: More configurability and bh handling for tx |
Date: |
Thu, 02 Sep 2010 09:00:42 -0600 |
User-agent: |
StGIT/0.14.3 |
Incorporated feedback. txburst= and txtimer= are now "x-" prefixed
developer options. I added a tx= option, because I do want there to
be a supported way to switch between TX strategies. This also drops
the magic value of txtimer= 1 or 0 (setting default timeout or switching
modes). I also dropped the trickiness around only enabling the bottom
half for the iothread since Anthony indicates we don't care about
performance for the non-iothread case.
New performance data against both qemu.git and qemu-kvm.git:
https://spreadsheets.google.com/pub?key=0AoEm50Bac2U7dGdlREhrWUpPVEdMcTJaX0RjSEgtc3c&hl=en&single=true&gid=0&output=html
This shows the base performance versus patched with new default for
various packet sizes and netperf test loads. The guest is a 2-way
SMP, connected directly to the host via a tap (no bridge). Thanks,
Alex
---
Alex Williamson (4):
virtio-net: Introduce a new bottom half packet TX
virtio-net: Rename tx_timer_active to tx_waiting
virtio-net: Limit number of packets sent per TX flush
virtio-net: Make tx_timer timeout configurable
hw/s390-virtio-bus.c | 8 +++
hw/s390-virtio-bus.h | 1
hw/syborg_virtio.c | 8 +++
hw/virtio-net.c | 129 +++++++++++++++++++++++++++++++++++++++++---------
hw/virtio-net.h | 14 +++++
hw/virtio-pci.c | 8 +++
hw/virtio.h | 4 +-
7 files changed, 144 insertions(+), 28 deletions(-)
- [Qemu-devel] [PATCH v2 0/4] virtio-net: More configurability and bh handling for tx,
Alex Williamson <=
- [Qemu-devel] [PATCH v2 1/4] virtio-net: Make tx_timer timeout configurable, Alex Williamson, 2010/09/02
- [Qemu-devel] [PATCH v2 3/4] virtio-net: Rename tx_timer_active to tx_waiting, Alex Williamson, 2010/09/02
- [Qemu-devel] [PATCH v2 2/4] virtio-net: Limit number of packets sent per TX flush, Alex Williamson, 2010/09/02
- [Qemu-devel] [PATCH v2 4/4] virtio-net: Introduce a new bottom half packet TX, Alex Williamson, 2010/09/02
- [Qemu-devel] Re: [PATCH v2 0/4] virtio-net: More configurability and bh handling for tx, Michael S. Tsirkin, 2010/09/02
- [Qemu-devel] Re: [PATCH v2 0/4] virtio-net: More configurability and bh handling for tx, Juan Quintela, 2010/09/03