Linked by Kroc Camen on Thu 25th Dec 2008 07:50 UTC, submitted by diegocg
Linux Heise Open Source provides an extensive breakdown of the innovations present in the latest release of the Linux kernel, announced by Linus Torvalds. This version adds the first version of Ext4 as a stable filesystem, the much-anticipated GPU memory manager which will be the foundation of a renewed graphic stack, support for Ultra Wide Band (Wireless USB, UWB-IP), memory management scalability and performance improvements, a boot tracer, disk shock protection, the phonet network protocol, support of SSD discard requests, transparent proxy support, high-resolution poll()/select()... full Changelog here
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RE[10]: the list is impressive
by akrosdbay on Tue 30th Dec 2008 09:55 UTC in reply to "RE[9]: the list is impressive"
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Oh ok, according to YOU! Case closed! Too bad you are completely wrong. Have you heard of XNU which is a hybrid kernel or XOK, MIT's exokernel which is smaller than a microkernel but does not use message passing?

You clearly have no clue. We were talking about microkernels and monolithic kernels. Hybrid kernels are supposed to be an amalgam of those two concepts. The MIT exokernel is neither of those.

I didn't say they are the only two ways of doing things.

Methinks you don't understand the point behind microkernels. The main reason is to move things out of kernelspace to avoid errors that can take down the entire system. By moving more things out of the Linux kernel into userspace it allows some of the same advantages.

Wrong! udev has nothing to do with device drivers or privileged code. First understand what udev does before you talk out of your nether regions.

I was pointing out that your examples are completely wrong. You are trying to convey a point but you don't even understand the examples you are using.

This is true but the filesystem implementations are completely in userspace.

Therefore FUSE is a bad example because all of it is not in user space. It is a good abstraction but it doesn't make the OS, FUSE is running on any more of a microkernel. The reason being a kernel mode driver is need to make it work.

I guess most implementation of Mach are not microkernels then since they use co-location to move servers into kernelspace because of the atrocious performance of pure microkernels.

Most commercial implementations of Mach like Mac OS X darwin are no longer microkernels.

One word, QNX. You really need to pay attention. QNX beats the pants off linux in scaling down, RT and latency. Got any more ignorance to spread?

Edited 2008-12-30 09:56 UTC

Reply Parent Score: 1