| From: |
| Bart Van Assche <bvanassche-AT-acm.org> |
| To: |
| "Martin K . Petersen" <martin.petersen-AT-oracle.com> |
| Subject: |
| [PATCH v2 0/5] Increase SCSI IOPS |
| Date: |
| Mon, 24 Nov 2025 10:21:55 -0800 |
| Message-ID: |
| <20251124182201.737160-1-bvanassche@acm.org> |
| Cc: |
| linux-scsi-AT-vger.kernel.org, linux-block-AT-vger.kernel.org, John Garry <john.g.garry-AT-oracle.com>, Hannes Reinecke <hare-AT-suse.de>, Bart Van Assche <bvanassche-AT-acm.org> |
| Archive-link: |
| Article |
Hi Martin,
This patch series increases scsi_debug IOPS by 5% on my test setup by disabling
SCSI budget management if it is not needed. This patch series improves the
performance of many SCSI LLDs, including the UFS and ATA drivers.
Please consider this patch series for the next merge window.
Thanks,
Bart.
Changes compared to v1:
- Fixed a hang during LUN scanning for ATA devices.
Bart Van Assche (5):
block: Introduce __blk_mq_tagset_iter()
block: Introduce blk_mq_tagset_iter()
libata: Stop using cmd->budget_token
scsi: core: Generalize scsi_device_busy()
scsi: core: Improve IOPS in case of host-wide tags
block/blk-mq-tag.c | 51 ++++++++++++++++++++++++++++----------
drivers/ata/libata-scsi.c | 18 +++++---------
drivers/scsi/scsi.c | 6 ++---
drivers/scsi/scsi_lib.c | 38 ++++++++++++++++++++++++++++
drivers/scsi/scsi_scan.c | 18 +++++++++++++-
include/linux/blk-mq.h | 2 ++
include/scsi/scsi_device.h | 5 +---
7 files changed, 104 insertions(+), 34 deletions(-)
