Kernel 2.4.26 and hyperthreading
 

I've installed a debian distro on my comp with the kernel 2.4.26
I'd like to know if the hyperthreading is enabled and working fine. If it's not enabled what should i do it to get it working

run dmesg, and look for a line which implied you have 2 cpus. for example:
CPU1: Intel(R) Pentium(R) 4 CPU 3.20GHz stepping 09
Total of 2 processors activated (12681.21 BogoMIPS).
is near the top on mine. if you cant find anything, check that you have enabled SMP (which allows you to use more than one processor)

This is what i get with dmesg (only a part of it)

Linux version 2.4.26-1-686 (herbert@gondolin) (gcc version 3.3.3 (Debian 20040401)) #3 Sun Apr 18 21:17:21 EST 2004
BIOS-provided physical RAM map:
BIOS-e820: 0000000000000000 - 000000000009f800 (usable)
BIOS-e820: 000000000009f800 - 00000000000a0000 (reserved)
BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
BIOS-e820: 0000000000100000 - 000000001fff0000 (usable)
BIOS-e820: 000000001fff0000 - 000000001fff3000 (ACPI NVS)
BIOS-e820: 000000001fff3000 - 0000000020000000 (ACPI data)
BIOS-e820: 00000000fec00000 - 0000000100000000 (reserved)
0MB HIGHMEM available.
511MB LOWMEM available.
found SMP MP-table at 000f5d80
hm, page 000f5000 reserved twice.
hm, page 000f6000 reserved twice.
hm, page 000f0000 reserved twice.
hm, page 000f1000 reserved twice.
On node 0 totalpages: 131056
zone(0): 4096 pages.
zone(1): 126960 pages.
zone(2): 0 pages.
ACPI: RSDP (v000 IntelR ) @ 0x000f7ca0
ACPI: RSDT (v001 IntelR AWRDACPI 0x42302e31 AWRD 0x00000000) @ 0x1fff3000
ACPI: FADT (v001 IntelR AWRDACPI 0x42302e31 AWRD 0x00000000) @ 0x1fff3040
ACPI: MADT (v001 IntelR AWRDACPI 0x42302e31 AWRD 0x00000000) @ 0x1fff7a40
ACPI: DSDT (v001 INTELR AWRDACPI 0x00001000 MSFT 0x0100000e) @ 0x00000000
ACPI: Local APIC address 0xfee00000
ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
Processor #0 Pentium 4(tm) XEON(tm) APIC version 20
ACPI: LAPIC (acpi_id[0x01] lapic_id[0x01] enabled)
Processor #1 Pentium 4(tm) XEON(tm) APIC version 20
ACPI: LAPIC_NMI (acpi_id[0x00] high edge lint[0x1])
ACPI: LAPIC_NMI (acpi_id[0x01] high edge lint[0x1])
Using ACPI for processor (LAPIC) configuration information
Intel MultiProcessor Specification v1.4
Virtual Wire compatibility mode.
OEM ID: OEM00000 Product ID: PROD00000000 APIC at: 0xFEE00000
I/O APIC #2 Version 17 at 0xFEC00000.
Enabling APIC mode: Flat. Using 1 I/O APICs
Processors: 2
Kernel command line: root=/dev/hdc2 ro
Initializing CPU#0
Detected 3006.888 MHz processor.
Console: colour VGA+ 80x25
Calibrating delay loop... 6003.09 BogoMIPS
Memory: 511436k/524224k available (1220k kernel code, 12400k reserved, 459k data, 112k init, 0k highmem)
Dentry cache hash table entries: 65536 (order: 7, 524288 bytes)
Inode cache hash table entries: 32768 (order: 6, 262144 bytes)
Mount cache hash table entries: 512 (order: 0, 4096 bytes)
Buffer cache hash table entries: 32768 (order: 5, 131072 bytes)
Page-cache hash table entries: 131072 (order: 7, 524288 bytes)
CPU: Trace cache: 12K uops, L1 D cache: 8K
CPU: L2 cache: 512K
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#0.
CPU: After generic, caps: bfebfbff 00000000 00000000 00000000
CPU: Common caps: bfebfbff 00000000 00000000 00000000
CPU: Intel(R) Pentium(R) 4 CPU 2.40GHz stepping 05
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Checking 'hlt' instruction... OK.
POSIX conformance testing by UNIFIX
enabled ExtINT on CPU#0
ESR value before enabling vector: 00000000
ESR value after enabling vector: 00000000
ENABLING IO-APIC IRQs

Yep, chip 0, chip 1:

Processor #0 Pentium 4(tm) XEON(tm) APIC version 20
ACPI: LAPIC (acpi_id[0x01] lapic_id[0x01] enabled)
Processor #1 Pentium 4(tm) XEON(tm) APIC version 20

There ya go.

Cheers,

Finegan

Alright 10x