Removing the Big Kernel Lock

Courtesy Slashdot: Linux  Sat, 05/17/2008 - 11:13

Corrado writes "There is a big discussion going on over removing a bit of non-preemptable code from the Linux kernel.

'As some of the latency junkies on lkml already know, commit 8e3e076 in v2.6.26-rc2 removed the preemptable BKL feature and made the Big Kernel Lock a spinlock and thus turned it into non-preemptable code again.

"This commit returned the BKL code to the 2.6.7 state of affairs in essence," began Ingo Molnar. He noted that this had a very negative...


 

Related items

16 videos from the Linux Kernel Summit
DeviceGuru: "The Linux Foundation has published a series of video interviews from the annual Linux Kernel Summit held Sept. 15-16 in Portland,...

Removing the Big Kernel Lock
"As some of the latency junkies on lkml already know, commit 8e3e076 in v2.6.26-rc2 removed the preemptible BKL feature and made the Big Kernel Lock...

The Wit and Wisdom of Linus Torvalds
The Linux Distillery: "Linus Torvalds is known, rightly so, as the creator of the Linux kernel. What began as his own hobby project now powers major...

Torvalds: Real Quality Means Taking it Personally
LinuxDevices: "The Linux Foundation (LF) has posted a ten-minute video interview with kernel coordinator Linus Torvalds. Held during the Linux...

iPhone: The Missing Manual: Covers the iPhone 3G (Missing...
The new iPhone 3G is here, and New York Times tech columnist David Pogue is on top of it with a thoroughly updated edition of iPhone: The Missing...

Cocoa(R) Programming for Mac(R) OS X (3rd Edition)
The best-selling introduction to Cocoa, once again updated to cover the latest Mac programming technologies, and still enthusiastically recommended...

Logitech V470 Bluetooth Cordless Laser Mouse for Notebooks -...
Logitech V470 Cordless Laser Mouse for Notebooks with Bluetooth Technology allows people to connect directly to Bluetooth-enabled MacBook computers...


 

Post new comment

The content of this field is kept private and will not be shown publicly.
motd.ambians.com