Xue He 152c331bcd block: plug attempts to batch allocate tags multiple times ...

This patch aims to enable batch allocation of sufficient tags after
batch IO submission with plug mechanism, thereby avoiding the need for
frequent individual requests when the initial allocation is
insufficient.
-----------------------------------------------------------
HW:
16 CPUs/16 poll queues
Disk: Samsung PM9A3 Gen4 3.84T

CMD:
[global]
ioengine=io_uring
group_reporting=1
time_based=1
runtime=1m
refill_buffers=1
norandommap=1
randrepeat=0
fixedbufs=1
registerfiles=1
rw=randread
iodepth=128
iodepth_batch_submit=32
iodepth_batch_complete_min=32
iodepth_batch_complete_max=128
iodepth_low=32
bs=4k
numjobs=1
direct=1
hipri=1

[job1]
filename=/dev/nvme0n1
name=batch_test
------------------------------------------------------------
Perf:
base code: __blk_mq_alloc_requests() 1.47%
patch: __blk_mq_alloc_requests() 0.75%
------------------------------------------------------------

Signed-off-by: hexue <xue01.he@samsung.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

2025-11-18 14:59:41 -07:00

..

partitions

block: switch ->getgeo() to struct gendisk

2025-08-13 02:59:29 -04:00

badblocks.c

badblocks: Fix a nonsense WARN_ON() which checks whether a u64 variable < 0

2025-03-10 07:41:58 -06:00

bdev.c

fs: rename generic_delete_inode() and generic_drop_inode()

2025-09-15 16:09:42 +02:00

bfq-cgroup.c

…

bfq-iosched.c

blk-mq: fix elevator depth_updated method

2025-09-05 13:52:52 -06:00

bfq-iosched.h

lib/sbitmap: convert shallow_depth from one word to the whole sbitmap

2025-08-07 06:30:17 -06:00

bfq-wf2q.c

…

bio-integrity-auto.c

block: make bio auto-integrity deadlock safe

2025-11-04 12:41:50 -07:00

bio-integrity.c

block: make bio auto-integrity deadlock safe

2025-11-04 12:41:50 -07:00

bio.c

block: accumulate memory segment gaps per bio

2025-11-06 18:11:58 -07:00

blk-cgroup-fc-appid.c

…

blk-cgroup-rwstat.c

…

blk-cgroup-rwstat.h

blk-cgroup: rwstat: fix kernel-doc warnings in header file

2025-01-13 07:47:09 -07:00

blk-cgroup.c

block: Remove elevator_lock usage from blkg_conf frozen operations

2025-10-15 08:00:19 -06:00

blk-cgroup.h

block: initialize bio issue time in blk_mq_submit_bio()

2025-09-10 05:23:45 -06:00

blk-core.c

Merge tag 'for-6.18/block-20250929' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux

2025-10-02 10:16:56 -07:00

blk-crypto-fallback.c

blk-crypto: convert to use bio_submit_split_bioset()

2025-09-10 05:23:46 -06:00

blk-crypto-internal.h

blk-crypto: add ioctls to create and prepare hardware-wrapped keys

2025-02-10 09:54:19 -07:00

blk-crypto-profile.c

blk-crypto: export wrapped key functions

2025-05-06 19:08:08 +02:00

blk-crypto-sysfs.c

blk-crypto: show supported key types in sysfs

2025-02-10 09:54:19 -07:00

blk-crypto.c

blk-crypto: add ioctls to create and prepare hardware-wrapped keys

2025-02-10 09:54:19 -07:00

blk-flush.c

block: remove unused parameter

2025-03-12 08:25:28 -06:00

blk-ia-ranges.c

block: get rid of request queue ->sysfs_dir_lock

2025-01-29 07:16:47 -07:00

blk-integrity.c

Merge tag 'for-6.18/block-20250929' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux

2025-10-02 10:16:56 -07:00

blk-ioc.c

copy_process: pass clone_flags as u64 across calltree

2025-09-01 15:31:34 +02:00

blk-iocost.c

Merge tag 'for-6.15/block-20250322' of git://git.kernel.dk/linux

2025-03-26 18:08:55 -07:00

blk-iolatency.c

blk-mq: add QUEUE_FLAG_BIO_ISSUE_TIME

2025-09-10 05:23:45 -06:00

blk-ioprio.c

blk-cgroup: Simplify policy files registration

2025-03-11 09:22:55 -10:00

blk-ioprio.h

…

blk-lib.c

block: use largest_zero_folio in __blkdev_issue_zero_pages()

2025-09-13 16:54:54 -07:00

blk-map.c

block: accumulate memory segment gaps per bio

2025-11-06 18:11:58 -07:00

blk-merge.c

block: consider discard merge last

2025-11-17 09:39:36 -07:00

blk-mq-cpumap.c

blk-mq: add number of queue calc helper

2025-07-01 10:24:19 -06:00

blk-mq-debugfs.c

blk-mq: add QUEUE_FLAG_BIO_ISSUE_TIME

2025-09-10 05:23:45 -06:00

blk-mq-debugfs.h

…

blk-mq-dma.c

block-dma: properly take MMIO path

2025-11-14 05:09:56 -07:00

blk-mq-sched.c

block: use {alloc|free}_sched data methods

2025-11-13 09:27:49 -07:00

blk-mq-sched.h

block: use {alloc|free}_sched data methods

2025-11-13 09:27:49 -07:00

blk-mq-sysfs.c

blk-mq: Move flush queue allocation into blk_mq_init_hctx()

2025-09-08 08:05:32 -06:00

blk-mq-tag.c

blk-mq: fix stale tag depth for shared sched tags in blk_mq_update_nr_requests()

2025-10-15 07:49:19 -06:00

blk-mq.c

block: plug attempts to batch allocate tags multiple times

2025-11-18 14:59:41 -07:00

blk-mq.h

blk-mq: fix stale tag depth for shared sched tags in blk_mq_update_nr_requests()

2025-10-15 07:49:19 -06:00

blk-pm.c

block: force noio scope in blk_mq_freeze_queue

2025-01-31 07:20:08 -07:00

blk-pm.h

…

blk-rq-qos.c

block: avoid cpu_hotplug_lock depedency on freeze_lock

2025-08-21 07:11:11 -06:00

blk-rq-qos.h

block: validate QoS before calling __rq_qos_done_bio()

2025-08-26 10:34:08 -06:00

blk-settings.c

block: add lockdep to queue_limits_commit_update()

2025-11-11 07:51:08 -07:00

blk-stat.c

treewide, timers: Rename from_timer() to timer_container_of()

2025-06-08 09:07:37 +02:00

blk-stat.h

treewide: Switch/rename to timer_delete[_sync]()

2025-04-05 10:30:12 +02:00

blk-sysfs.c

blk-mq: fix potential deadlock while nr_requests grown

2025-09-10 05:25:56 -06:00

blk-throttle.c

block/blk-throttle: Remove throtl_slice from struct throtl_data

2025-11-17 09:39:48 -07:00

blk-throttle.h

blk-throttle: fix access race during throttle policy activation

2025-09-08 08:24:44 -06:00

blk-timeout.c

…

blk-wbt.c

blk-wbt: Eliminate ambiguity in the comments of struct rq_wb

2025-08-11 10:21:38 -06:00

blk-wbt.h

…

blk-zoned.c

block: fix NULL pointer dereference in disk_report_zones()

2025-11-13 09:10:04 -07:00

blk.h

block: unify elevator tags and type xarrays into struct elv_change_ctx

2025-11-13 09:27:49 -07:00

bsg-lib.c

block: remove unused parameter 'q' parameter in __blk_rq_map_sg()

2025-03-13 05:46:19 -06:00

bsg.c

…

disk-events.c

…

early-lookup.c

…

elevator.c

block: use {alloc|free}_sched data methods

2025-11-13 09:27:49 -07:00

elevator.h

block: use {alloc|free}_sched data methods

2025-11-13 09:27:49 -07:00

fops.c

block: move bio_iov_iter_get_bdev_pages to block/fops.c

2025-10-07 08:05:44 -06:00

genhd.c

block: rate-limit capacity change info log

2025-11-17 11:30:24 -07:00

holder.c

…

ioctl.c

block: introduce BLKREPORTZONESV2 ioctl

2025-11-05 08:07:21 -07:00

ioprio.c

block: remove test of incorrect io priority level

2025-05-08 09:04:12 -06:00

Kconfig

block: Remove obsolete configs BLK_MQ_{PCI,VIRTIO}

2025-05-14 05:43:56 -06:00

Kconfig.iosched

…

kyber-iosched.c

block: define alloc_sched_data and free_sched_data methods for kyber

2025-11-13 09:27:49 -07:00

Makefile

blk-mq: move the DMA mapping code to a separate file

2025-05-16 08:43:41 -06:00

mq-deadline.c

block/mq-deadline: Switch back to a single dispatch list

2025-10-20 10:37:42 -06:00

opal_proto.h

…

sed-opal.c

…

t10-pi.c

block: rename tuple_size field in blk_integrity to metadata_size

2025-07-01 14:00:14 +02:00