2.5.54-mjb2 (scalability / NUMA patchset)

From: Martin J. Bligh (mbligh@aracnet.com)
Date: Sun Jan 05 2003 - 21:58:40 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/2.5.54/patch-2.5.54-mjb2.bz2

Since 2.5.54-mjb1 (mainly finished moving NUMA-Q into subarch).

- kgdb
+ kgdb (new version) Andrew Morton / Various People
~ i386_caching_topo (rejigged)
+ cleanup_cpu_apicid Martin Bligh
+ smpboot_cam Martin Bligh
+ nuke_clustered_apic Martin Bligh
~ interrupt_stacks (fixed a warning)
~ stack_usage_check (fixed a warning)
+ do_boot_error (this was in -mjb1, but I forgot it in the notes)

Also reordered a bunch of stuff.

Pending:
Speed up page init on boot (Bill Irwin)
Notsc automatic enablement
Full Summit support (James C / John)
scheduler callers profiling (Anton)
PPC64 NUMA patches (Anton)
Scheduler tunables (rml)
Lockless xtime structures (Andi)

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

noframeptr Martin Bligh
        Disable -fomit_frame_pointer

apicid_to_node Martin Bligh
        Create an machine specific apicid_to_node for everyone

i386_topo Matt Dobson
        Some i386 topology cleanups to make it cache the data.

do_boot_error James Cleverdon
        Change do_boot_cpu to return an error code instead of fishing globally

fix_starfire_warning Martin Bligh
        Fix trivial starfire compile warning that keeps annoying me.

shpte Dave McCracken
        Shared pagetables (as a config option)

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

numasched1 Erich Focht
        Numa scheduler general foundation work + pooling

numasched2 Michael Hohnbaum
        Numa scheduler lightweight initial load balancing.

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

more_numaq1 James Cleverdon / Martin Bligh
        yet more Numa-Q subarch splitup

cleanup_cpu_apicid Martin J. Bligh
        Cleanup & simplify the apicid <-> cpu mapping stuff I put in ages ago.

smpboot_cam Martin J. Bligh
        Remove clustered_apic_mode stuff from smpboot.c

nuke_clustered_apic Martin J. Bligh
        Kill clustered_apic_mode and CONFIG_CLUSTERED_APIC forever.

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

kallsyms Andi Kleen / Daniel Ritz
        Fix some bug.

-mjb Martin Bligh
        Add a tag to the makefile

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