2.5.64-mjb2 (scalability / NUMA patchset)

From: Martin J. Bligh (mbligh@aracnet.com)
Date: Sat Mar 08 2003 - 20:21:26 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.

NOTE - you will have to apply -bk3 before applying this release.
ftp://ftp.kernel.org/pub/linux/kernel/v2.5/snapshots/patch-2.5.64-bk3.bz2
ftp://ftp.kernel.org/pub/linux/kernel/people/mbligh/2.5.64/patch-2.5.64-bk3-mjb2.bz2

additional:

http://www.aracnet.com/~fletch/linux/2.5.59/pidmaps_nodepages

Since 2.5.64-mjb1 (~ = changed, + = added, - = dropped)

Notes: This is just a merge up on top of the cool new scheduler stuff.

Merged with Linus:

- nfs_fix Trond Myklebust
~ sched_tunables Robert Love

New:

Pending:
scheduler callers profiling (Anton)
PPC64 NUMA patches (Anton)
Child runs first (akpm)
Kexec
e1000 fixes
Non-PAE aligned kernel splits (Dave Hansen)
Update the lost timer ticks code
Ingo scheduler updates

Present in this patch:

common_physmap Andy Whitcroft
        merge physnode_map implementations from numaq and summit

pfn_to_nid_inline Andy Whitcroft
        converts the pfn_to_nid macro into an inline

numa_x86_pc Andy Whitcroft
        adds basic numa support for flat systems

physnode_map_u8 Andy Whitcroft
        converts physnode_map array to u8 (save cache polution)

profiling_docs Martin J. Bligh
        Basic profiling docs

align_files_lock Martin J. Bligh
        Cacheline align files_lock

pfn_valid Andy Whitcroft
        fixes up a bug in copy_page_range

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

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

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

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

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

schedstat2 Rick Lindsley
        Provide more stats about the scheduler under /proc/schedstat

schedstat-scripts Rick Lindsley
        Provide some scripts for schedstat analysis under scripts/

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

irq_affinity Martin J. Bligh
        Workaround for irq_affinity on clustered apic mode systems (eg x440)

cleaner_inodes Andrew Morton
        Make noatime filesystems more efficient

partial_objrmap Dave McCracken
        Object based rmap for filebacked pages.

objrmap_fix Dave McCracken
        Fix detection of anon pages

objrmap_fixes Dave McCracken / Hugh Dickins
        Fix up some mapped sizing bugs in objrmap

objrmap_mapcount Dave McCracken
        Fix up some mapped sizing bugs in objrmap

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

noframeptr Martin Bligh
        Disable -fomit_frame_pointer

kprobes Vamsi Krishna S
        Add kernel probes hooks to the kernel

# dmc_exit Dave McCracken
        Speed up the exit path.

# shpte Dave McCracken
        Shared pagetables (as a config option)

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

fix_kgdb Dave Hansen
        Fix interaction between kgdb and 4K stacks

stacks_from_slab William Lee Irwin
        Take kernel stacks from the slab cache, not page allocation.

thread_under_page William Lee Irwin
        Fix THREAD_SIZE < PAGE_SIZE case

lkcd LKCD team
        Linux kernel crash dump support

percpu_loadavg Martin J. Bligh
        Provide per-cpu loadaverages, and real load averages

-mjb Martin J. Bligh
        Add a tag to the makefile

-
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