No description
Find a file
Dave Chinner 5825bea052 xfs: __percpu_counter_compare() inode count debug too expensive
- 21.92% __xfs_trans_commit
     - 21.62% xfs_log_commit_cil
	- 11.69% xfs_trans_unreserve_and_mod_sb
	   - 11.58% __percpu_counter_compare
	      - 11.45% __percpu_counter_sum
		 - 10.29% _raw_spin_lock_irqsave
		    - 10.28% do_raw_spin_lock
			 __pv_queued_spin_lock_slowpath

We debated just getting rid of it last time this came up and
there was no real objection to removing it. Now it's the biggest
scalability limitation for debug kernels even on smallish machines,
so let's just get rid of it.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
2021-03-25 16:47:52 -07:00
arch Boundary condition fixes for bugs unearthed by the perf fuzzer. 2021-03-21 11:26:21 -07:00
block
certs
crypto
Documentation xfs: rename the blockgc workqueue 2021-03-25 16:47:50 -07:00
drivers Staging/IIO driver fixes for 5.12-rc4 2021-03-21 11:54:04 -07:00
fs xfs: __percpu_counter_compare() inode count debug too expensive 2021-03-25 16:47:52 -07:00
include USB / Thunderbolt driver fixes for 5.12-rc4 2021-03-21 11:49:16 -07:00
init
ipc
kernel io_uring-5.12-2021-03-21 2021-03-21 12:25:54 -07:00
lib
LICENSES
mm
net
samples
scripts
security
sound sound fixes for 5.12-rc4 2021-03-19 09:53:32 -07:00
tools selftests: kvm: add set_boot_cpu_id test 2021-03-18 13:55:14 -04:00
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS
Makefile Linux 5.12-rc4 2021-03-21 14:56:43 -07:00
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 Restructured Text 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.