mirror of https://github.com/torvalds/linux.git
6b08fe7763
Mike Christie <michael.christie@oracle.com> says: The following patches made over Linus's tree remove the atomic use from the main IO path. There was a handful of atomic_longs used just used for stats and a couple atomics used for handling ordered commands. These patches move the stats to per cpu, and moves the ordered tracking to a per cpu counter. With the patches 8K IOPS increases by up to 33% when running fio with numjobs >= 4 and using the vhost-scsi target with virtio-scsi and virtio num_queues >= 4 (jobs and queues match, and virtqueue_size and cmd_per_lun are increased to match the total iodepth of all jobs). Link: https://lore.kernel.org/r/20250424032741.16216-1-michael.christie@oracle.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> |
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|---|---|---|
| Documentation | ||
| LICENSES | ||
| arch | ||
| block | ||
| certs | ||
| crypto | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
| mm | ||
| net | ||
| rust | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .clippy.toml | ||
| .cocciconfig | ||
| .editorconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| .rustfmt.toml | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
README
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.