New kernel puts a spotlight on memory hogs
,----[ Quote ]
| After 2.6.21, which came out about a year ago, we started to be able to use
| PowerTOP to spot problem applications that wake up the processor and waste
| power.
`----
http://www.linuxworld.com.au/index.php/id;1561812273;fp;4194304;fpid;1
Meanwhile, on the other hand, Windows has gotten an order of magnitude worse
with Vista.
Understand Linux Virtual Memory Management
,----[ Quote ]
| Virtual memory is one of the most important, and accordingly confusing,
| pieces of an operating system. Understanding the basics of virtual memory is
| required to understand operating system performance. Beyond the basics, a
| deeper understanding allows a system administrator to interpret system
| profiling tools better, leading to quicker troubleshooting and better
| decisions.
|
| [...]
|
| To optimally configure your Virtual Memory Manager (VMM), it’s necessary to
| understand how it does its job. We’re using Linux for example’s sake, but the
| concepts apply across the board, though some slight architectural differences
| will exist between the Unixes.
`----
http://www.enterprisenetworkingplanet.com/netsysm/article.php/3741281
Recent (all from April 2008):
Kernel space: memory allocation failures
,----[ Quote ]
| If your production Linux system is logging memory allocation failures, it
| might still be able to keep running. But developers want to keep an eye on
| which code can survive a shortage of memory.
`----
http://www.linuxworld.com/news/2008/041508-kernel.html?fsrc=rss-linux-news
kmemcheck Aiming For Mainline Inclusion
,----[ Quote ]
| "kmemcheck is a patch to the linux kernel that detects use of uninitialized
| memory. It does this by trapping every read and write to memory that was
| allocated dynamically (e.g. using kmalloc()). If a memory address is read
| that has not previously been written to, a message is printed to the kernel
| log."
`----
http://kerneltrap.org/node/15912
Kernel space: ELF prediction to speed application startup
,----[ Quote ]
| A new technique might make it faster to get started with a large application,
| by giving the kernel advance notice of what are most likely to be the
| program's commonly used memory pages
`----
http://www.computerworld.com.au/index.php?id=369937208&rid=-219
Linux kernel developers have tripled in number
,----[ Quote ]
| The Linux Foundation (LF) has published a study on Linux mainline kernel
| development. According to LF, the number of Linux kernel developers has
| tripled since 2005, with many more companies contributing to the process
| (including, potentially, the latest new LF member, Adobe).
`----
http://www.linuxdevices.com/news/NS6925891609.html
NEWS: Linux Developers Make A Living
,----[ Quote ]
| Yes, I said paid professionals.
|
| [...]
|
| McPherson also notes that “it’s difficult for most people to get their minds
| around competitive mass collaboration.” Indeed, this is what the freedom
| afforded by Linux is all about. People (and companies) contribute not for
| humanitarian reasons, but because they expect a benefit. Work together to
| create the best platform, openly usable by everyone, and if it still doesn’t
| meet your needs perfectly, you are free to change it accordingly. Everyone
| wins. No compromises.
`----
http://linuxfud.wordpress.com/2008/04/02/news-linux-developers-make-a-living/
|
|
