On Mon, Dec 01, 2003 at 11:41:08AM +0100, Marco Cecconi wrote: > Hello, which woody kernel supports Hyper Threading? I've read somewhere > that 2.4+ kernels support this feature but how? Is a SMP build > sufficient? How does linux support HT, dual processor style (like e.g. > Win2000) or natively (like e.g. WinXP)? I'm using 2.4.22 on some dual P4 Xeon systems, and /proc/cpuinfo reports there being 4 cpus. I haven't done any benchmarking to determine if there's really any benefit to hyperthreading in normal usage. Building the kernel with -j4 was faster than with -j2, but it's been a while since I ran the same test on a non-hyperthreaded dual CPU system. It's possible that it would be faster even without the hyperthreading. I don't recall doing anything special to enable support for hyperthreading. The kernel is built for the P4 architecture and SMB support is compiled in. noah
Attachment:
pgp0IGZpyuJGS.pgp
Description: PGP signature