Kirill Tkhai <ktkhai@xxxxxxxxxxxxx> writes: > Hi, Benjamin, > > On 04.12.2017 19:52, Benjamin LaHaise wrote: >> Hi Kirill, >> >> On Mon, Dec 04, 2017 at 07:12:51PM +0300, Kirill Tkhai wrote: >>> Hi, >>> >>> this patch set introduces accounting aio_nr and aio_max_nr per blkio cgroup. >>> It may be used to limit number of aio requests, which are available for >>> a cgroup, and could be useful for containers. >>> >>> The accounting is hierarchical, and aio contexts, allocated in child cgroup, >>> are accounted in parent cgroups too. >>> >>> Also, new cgroup file "io.aio_nr" is introduced. It's used to set cgroup >>> aio requests limit, to show current limit and number of currenly occupied >>> requests. >> >> Where are your test cases to check this functionality in the libaio test >> suite? > > I tried to find actual libaio test suite repository url in google, > but there is no certain answer. Also, there is no information in kernel > anywhere (I hope I grepped right). > > Could you please provide url where actual upstream libaio could be obtained? https://pagure.io/libaio Patches can be sent to this list (linux-aio). Cheers, Jeff >>> Patches 1-3 are refactoring. >>> Patch 4 is the place where the accounting actually introduced. >>> Patch 5 adds "io.aio_nr" file. >>> >>> --- >>> >>> Kirill Tkhai (5): >>> aio: Move aio_nr increment to separate function >>> aio: Export aio_nr_lock and aio_max_nr initial value to include/linux/aio.h >>> blkcg: Add blkcg::blkg_aio_nr and blkcg::blkg_aio_max_nr >>> blkcg: Charge aio requests in blkio cgroup hierarchy >>> blkcg: Add cgroup file to configure blkcg::blkg_aio_max_nr >>> >>> >>> block/blk-cgroup.c | 88 +++++++++++++++++++++++++- >>> fs/aio.c | 151 ++++++++++++++++++++++++++++++++++++++++---- >>> include/linux/aio.h | 21 ++++++ >>> include/linux/blk-cgroup.h | 4 + >>> 4 files changed, 247 insertions(+), 17 deletions(-) >>> >>> -- >>> Signed-off-by: Kirill Tkhai <ktkhai@xxxxxxxxxxxxx> >>> >> > > -- > To unsubscribe, send a message with 'unsubscribe linux-aio' in > the body to majordomo@xxxxxxxxx. For more info on Linux AIO, > see: http://www.kvack.org/aio/ > Don't email: <a href=mailto:"aart@xxxxxxxxx";>aart@xxxxxxxxx</a>
