Feeds

Linux community demurs over Big Blue statements

It is an SMP system...

  • alert
  • submit to reddit

High performance access to file storage

We have had several letters from Linux readers which begged to differ with IBM over SMP plans for the OS. But, on the other hand, nearly all were thankful IBM was doing the necessary driver porting work. Earlier today, we posted a story saying that IBM had undertaken a massive drivers project for the Linux OS on Netfinity servers. (Story: IBM gives Linux helping hand) One Linux fan said: "IBM's statement about linux being only 'two way' are incorrect. According to the Linux SMP FAQ, Alan Cox states that even Linux 2.0 has been tested with four CPU systems. Linux 2.2 supports up to 16 processors (the same as 2.0), but due to kernel changes, can handle more than two more efficiently than 2.0". However, the fan added: "It Does seem like IBM will do some nice stuff for Linux. Look out billyboi!" Another reader wrote: "The Linux that IBM is supporting on its Netfinity servers is Red Hat 5.2, which is indeed only two-way since it is based on the older 2.0.3x Linuxk kernel. Red Hat does not yet support the newer 2.2 kernel released mid-last month which has significantly improved SMP capability. "The newer Linux 2.2 kernel does support up to 16-way, but keep in mind, this only means that it boots on a 16-way. Actual scalability has yet to be demonstrated. That means there is little or no evidence that performance actually increases when you add more processors. There has been no public demonstration of scalability (e.g. published benchmarks from trade press or independent benchmark organisations) of improved performance to even four-way as far as I am aware of, as I've been keeping an eye out for that." ®

High performance access to file storage

More from The Register

next story
Sorry London, Europe's top tech city is Munich
New 'Atlas of ICT Activity' finds innovation isn't happening at Silicon Roundabout
MtGox chief Karpelès refuses to come to US for g-men's grilling
Bitcoin baron says he needs another lawyer for FinCEN chat
Dropbox defends fantastically badly timed Condoleezza Rice appointment
'Nothing is going to change with Dr. Rice's appointment,' file sharer promises
Audio fans, prepare yourself for the Second Coming ... of Blu-ray
High Fidelity Pure Audio – is this what your ears have been waiting for?
Did a date calculation bug just cost hard-up Co-op Bank £110m?
And just when Brit banking org needs £400m to stay afloat
Zucker punched: Google gobbles Facebook-wooed Titan Aerospace
Up, up and away in my beautiful balloon flying broadband-bot
Apple DOMINATES the Valley, rakes in more profit than Google, HP, Intel, Cisco COMBINED
Cook & Co. also pay more taxes than those four worthies PLUS eBay and Oracle
It may be ILLEGAL to run Heartbleed health checks – IT lawyer
Do the right thing, earn up to 10 years in clink
prev story

Whitepapers

Securing web applications made simple and scalable
In this whitepaper learn how automated security testing can provide a simple and scalable way to protect your web applications.
Five 3D headsets to be won!
We were so impressed by the Durovis Dive headset we’ve asked the company to give some away to Reg readers.
HP ArcSight ESM solution helps Finansbank
Based on their experience using HP ArcSight Enterprise Security Manager for IT security operations, Finansbank moved to HP ArcSight ESM for fraud management.
The benefits of software based PBX
Why you should break free from your proprietary PBX and how to leverage your existing server hardware.
Mobile application security study
Download this report to see the alarming realities regarding the sheer number of applications vulnerable to attack, as well as the most common and easily addressable vulnerability errors.