2.5.59-mjb2 (scalability / NUMA patchset)

From: Martin J. Bligh (mbligh@aracnet.com)
Date: Tue Jan 28 2003 - 21:16:11 EST


The patchset contains mainly scalability and NUMA stuff, and anything
else that stops things from irritating me. It's meant to be pretty stable,
not so much a testing ground for new stuff.

I'd be very interested in feedback from anyone willing to test on any
platform, however large or small.

http://www.aracnet.com/~fletch/linux/2.5.59/patch-2.5.59-mjb2.bz2

Since 2.5.59-mjb1 (~ = changed, + = added, - = dropped)

Notes:
Added frlock xtime patches, cyclone timer fixes, sched stats.
I have new code for 4K stacks, but haven't applied it yet (next release).

+ schedstat Rick Lindsley
~ sched_tuneables Robert Love
- topo_hack Pat Gaughen
+ sysfs_fix Pat Gaughen
+ cyclone_fixes John Stultz
+ enable_cyclone John Stultz
+ lost_tick John Stultz
+ frlock_xtime Stephen Hemminger et al.
+ frlock_xtime-i386 Stephen Hemminger et al.
+ frlock_xtime-ia64 Stephen Hemminger et al.
+ frlock_xtime-other Stephen Hemminger et al.
+ tcp_fix Alexey
+ numa_pci_fix Dave Hansen

Pending:
Revised 4K stacks code
Notsc automatic enablement (someone, please ... anyone?)
scheduler callers profiling (Anton)
PPC64 NUMA patches (Anton)
Child runs first (akpm)
New qlogic driver (Badari ??)
Kexec
Linux Kernel Crash Dump

dcache_rcu Dipankar / Maneesh
        Use RCU type locking for the dentry cache.
 
early_printk Dave Hansen et al.
        Allow printk before console_init

confighz Andrew Morton / Dave Hansen
        Make HZ a config option of 100 Hz or 1000 Hz

config_page_offset Dave Hansen / Andrea
        Make PAGE_OFFSET a config option

vmalloc_stats Dave Hansen
        Expose useful vmalloc statistics

local_pgdat William Lee Irwin
        Move the pgdat structure into the remapped space with lmem_map

numameminfo Martin Bligh / Keith Mannthey
        Expose NUMA meminfo information under /proc/meminfo.numa

notsc Martin Bligh
        Enable notsc option for NUMA-Q (new version for new config system)

mpc_apic_id Martin J. Bligh
        Fix null ptr dereference (optimised away, but ...)

doaction Martin J. Bligh
        Fix cruel torture of macros and small furry animals in io_apic.c

kgdb Andrew Morton / Various People
        The older version of kgdb, synched with 2.5.54-mm1

noframeptr Martin Bligh
        Disable -fomit_frame_pointer

ingosched Ingo Molnar
        Modify NUMA scheduler to have independant tick basis.

schedstat Rick Lindsley
        Provide stats about the scheduler under /proc/stat

sched_tunables Robert Love
        Provide tunable parameters for the scheduler (+ NUMA scheduler)

thread_info_cleanup (4K stacks pt 1) Dave Hansen / Ben LaHaise
        Prep work to reduce kernel stacks to 4K
        
interrupt_stacks (4K stacks pt 2) Dave Hansen / Ben LaHaise
        Create a per-cpu interrupt stack.

stack_usage_check (4K stacks pt 3) Dave Hansen / Ben LaHaise
        Check for kernel stack overflows.

4k_stack (4K stacks pt 4) Dave Hansen
        Config option to reduce kernel stacks to 4K

discontig_x440 Pat Gaughen / Chandra
        SLIT/SRAT parsing for x440 discontigmem

sysfs_fix Pat Gaughen
        Fix sysfs for x440 machines instead of some topo hack ;-)

acpi_x440_hack Anonymous Coward
        Stops x440 crashing, but owner is ashamed of it ;-)

cyclone_fixes John Stultz
        Fix up some stuff for the x440's cyclone timer

enable_cyclone John Stultz
        Enable the x440's cyclone timer

lost_tick John Stultz
        Detect lost timer ticks

frlock_xtime Stephen Hemminger et al.
        Turn xtime_lock into an frlock to reduce contention

frlock-xtime-i386 Stephen Hemminger et al.
        Turn xtime_lock into an frlock to reduce contention

frlock-xtime-ia64 Stephen Hemminger et al.
        Turn xtime_lock into an frlock to reduce contention

frlock-xtime-other Stephen Hemminger et al.
        Turn xtime_lock into an frlock to reduce contention

numaq_ioapicids William Lee Irwin
        Stop 8 quad NUMA-Qs from panicing due to phys apicid "exhaustion".

oprofile_p4 John Levon
        Updates for oprofile for P4s. Needs new userspace tools.

starfire Ion Badulescu
        64 bit aware starfire driver

tcp_fix Alexey
        Stop some tcp problem with hardware checksumming (e1000?)

numa_pci_fix Dave Hansen
        Fix a potential error in the numa pci code from Stanford Checker

-mjb Martin Bligh
        Add a tag to the makefile

-
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