This patchset implement continous leaky bucket throttling.
It use two requests queue to enable to do silly unbalanced throttling like
block_set_io_throttle 0 0 0 0 6000 1
It use two timer to get the timer callbacks and the throttle.c code simple
v12:
compute unit only when size > op_size [Fam]
Drop Eric Reviwed by as patches have changed [Benoît]
fix badly concatenated string [Fam]
Add description of burst in header [Fam]
Fix braces spacing [Fam]
Fix qemu-options.hx bracket [Fam]
v11:
Reapplied Eric's reviewed by (they are precious)
v10:
Rebased on top of Eric latest patch (merged in qemu-trivial-next)
v9:
Apply Reviewed-By by Eric
Rebased on top of "qmp: fix integer usage in examples" by Eric (Please apply
it
first)
v8:
rearm timer only when it's not pending [Stefan]
Schedule next request right after accouting it [Stefan]
Benoît Canet (5):
throttle: Add a new throttling API implementing continuous leaky
bucket.
throttle: Add units tests
block: Enable the new throttling code in the block layer.
block: Add support for throttling burst max in QMP and the command
line.
block: Add iops_size to do the iops accounting for a given io size.
block.c | 338 +++++++++----------------------
block/qapi.c | 50 +++--
blockdev.c | 207 ++++++++++++++-----
hmp.c | 36 +++-
include/block/block.h | 1 -
include/block/block_int.h | 32 +--
include/qemu/throttle.h | 110 +++++++++++
qapi-schema.json | 40 +++-
qemu-options.hx | 6 +-
qmp-commands.hx | 32 ++-
tests/Makefile | 2 +
tests/test-throttle.c | 481 +++++++++++++++++++++++++++++++++++++++++++++
util/Makefile.objs | 1 +
util/throttle.c | 396 +++++++++++++++++++++++++++++++++++++
14 files changed, 1393 insertions(+), 339 deletions(-)
create mode 100644 include/qemu/throttle.h
create mode 100644 tests/test-throttle.c
create mode 100644 util/throttle.c
--
1.7.10.4
