2.5.58-mjb1 (scalability / NUMA patchset)

From: Martin J. Bligh (mbligh@aracnet.com)
Date: Tue Jan 14 2003 - 03:05:06 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/2.5.58/patch-2.5.58-mjb1.bz2

Since 2.5.55-mjb1

Notes:
The interrupt distribution on Summit should be fixed now.
I put the new minimal NUMA scheduler in, no node-balance code yet (real soon).
The summit code will break the new bigsmp subarch for now.

- ksymsoff Hugh Dickens
                        (kind of part merged, and I don't have an updated ver)
- numasched1 Erich Focht
+ summit1 James Cleverdon / John Stultz
~ summit2 John Stultz
+ min_numasched Martin J. Bligh
+ sched_tunables Robert Love

Pending:
NUMA node rebalancer (Erich Focht)
Speed up page init on boot (Bill Irwin)
Notsc automatic enablement
scheduler callers profiling (Anton)
PPC64 NUMA patches (Anton)
Lockless xtime structures (Andi)
P4 oprofile support (movement)

summit1 James Cleverdon / John Stultz
        Summit support part 1

summit2 James Cleverdon / John Stultz
        Summit support part 2

summit3 James Cleverdon / John Stultz
        Summit support part 3

summit4 James Cleverdon / John Stultz
        Summit support part 4

summit5 James Cleverdon / John Stultz
        Summit support part 5

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

min_numasched Martin J. Bligh
        Minimal NUMA scheduler to make balancing node-local

numasched_ilb Michael Hohnbaum
        Numa scheduler lightweight initial load balancing.

sched_tunables Robert Love
        Provide tunable parameters for the scheduler

local_pgdat Bill Irwin
        Move the pgdat structure into the remapped space with lmem_map

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

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

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

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

noframeptr Martin Bligh
        Disable -fomit_frame_pointer

-mjb Martin Bligh
        Add a tag to the makefile

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