Analyzing Linux Kernel

2010-06-19 Thread Group
Hi All, I'm trying to analyze the performance of Linux Kernel. I need to compare this with VxWorks performance. What are the performance benchmarks do we have to take?. How can we test the efficiency of the features provided by the OSes like Scheduling, Mem. Management, VM, network buffers (this

Re: Analyzing Linux Kernel

2010-06-19 Thread Bruce Rowen
Check the Wind River site, I'm sure they will have all these things in some sales brochure. It really depends on what real-time aspects of the OS you are after. Things like context switching, file system support, interrupt latency -Bruce On Jun 19, 2010, at 8:36 AM, Group wrote:

Re: Analyzing Linux Kernel

2010-06-19 Thread Joel Fernandes
How can we test the efficiency of the features provided by the OSes like Scheduling, Mem. Management, VM, network buffers (this i'm thinking to run with some traffic generator tool). I don't know about VxWorks but for the linux kernel take a look at ftrace. -Joel -- To unsubscribe from this

A confusion in kernel module concepts and a problem case

2010-06-19 Thread Shaz
Dear all, If a kernel code requires an external loadable module then will it get loaded automatically? If the code requires the kernel module much earlier than the filesystem is loaded and the module is made available than I should provide it earlier. This should require to make the external

Re: Analyzing Linux Kernel

2010-06-19 Thread Group
Thanks Joel, but m not sure on how i can use ftrace. as both OSes may have different calls to compare... Bruce, yes, even i have to handle those things..i mentioned to just name a few..How can we test context switching and interrupt latency?. Are there any tools for this?. I just saw netperf to

Re: Analyzing Linux Kernel

2010-06-19 Thread Abraham Arce
Hi, On Sat, Jun 19, 2010 at 4:47 PM, Group mailforgr...@gmail.com wrote: Thanks Joel, but m not sure on how i can use ftrace. as both OSes may have different calls to compare... Bruce, yes, even i have to handle those things..i mentioned to just name a few..How can we test context switching

Re: Analyzing Linux Kernel

2010-06-19 Thread sanjeev sharma
hey, use kernel Auto test suite for all the kernel feature testing. Best of luck sanjev sharma On Sat, Jun 19, 2010 at 11:36 PM, Group mailforgr...@gmail.com wrote: Hi All, I'm trying to analyze the performance of Linux Kernel. I need to compare this with VxWorks performance. What are

Re: Analyzing Linux Kernel

2010-06-19 Thread Bernd Petrovitsch
On Sam, 2010-06-19 at 10:36 -0400, Group wrote: [...] Hi, Nameless! A real name motivates probably more people to answer BTW. I'm trying to analyze the performance of Linux Kernel. I need to compare this with VxWorks performance. What are the performance benchmarks do we have to take?.

Re: A confusion in kernel module concepts and a problem case

2010-06-19 Thread Joel Fernandes
If a kernel code requires an external loadable module then will it get loaded automatically? Yes it will be, after you install a module, depmod is run which generates a file called modules.dep . modules.dep lists all dependencies for every module. These dependencies are then automatically