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Subject2.5.34-mm4

url: http://www.zip.com.au/~akpm/linux/patches/2.5/2.5.34/2.5.34-mm4/

Some additional work has been performed on the new, faster
sleep/wakeup facilities.

I have converted TCP/IPV4 over to use the faster wakeups. It would
be appreciated if the people who are interested in (and set up for
testing) high performance networking could test this out. Note
however that there is no benefit to select()/poll(). That's quite
a large change.

So please bear in mind that this code will only help if applications
are generally sleeping in accept(), connect(), etc. At this stage
I'd like to know whether this work is generally something which should be
pursued further - let's be careful that the measurements are not
swamped by select()/poll() wakeups.

The individual patches are:

http://www.zip.com.au/~akpm/linux/patches/2.5/2.5.34/2.5.34-mm4/broken-out/wake-speedup.patch
http://www.zip.com.au/~akpm/linux/patches/2.5/2.5.34/2.5.34-mm4/broken-out/tcp-wakeups.patch

These apply against 2.5.26 and possibly earlier, and testing against
earlier kernels would be valid. Thanks.



Changes have been made to /proc/stat which break top(1) and vmstat(1).
New versions are available at
http://www.zip.com.au/~akpm/linux/patches/procps-2.5.34-mm4.tar.gz
and newer versions will appear at
http://surriel.com/procps/

+aio-sync-iocb.patch

Ben's AIO patch conflicted with the readv/writev patch. This is
Ben's patch reworked to fit on top of readv-writev.patch

+pagevec_lru_add.patch

Fix a bogon which broke reiserfs4

+taka-writev.patch

Hirokazu Takahashi's writev() speedup.

+vm-wakeups.patch

Use the auto waitqueues in the VM and block layers. Broken out of
the wake-speedup patch.

+per-node-kswapd.patch

David Hansen's per-NUMA-node kswapd patch.

+topology-api.patch

Matthew Dobson's topology API.

+kswapd-reclaim-stats.patch

Add `kswapd_steal' and `pgrefill' to /proc/vmstat. The former indicates
that, on a quick test, 99% of page reclaim is being performed by kswapd.

+iowait.patch

Instrumentation to show how much time is spent in disk wait. (Doesn't
appear to come out in the new top(1) though?)

+tcp-wakeups.patch

Use auto-waitqueues in TCP/IPV4




linus.patch
cset-1.568.19.4-to-1.661.txt.gz

scsi_hack.patch
Fix block-highmem for scsi

ext3-htree.patch
Indexed directories for ext3

spin-lock-check.patch
spinlock/rwlock checking infrastructure

rd-cleanup.patch
Cleanup and fix the ramdisk driver (doesn't work right yet)

readv-writev.patch
O_DIRECT support for readv/writev

aio-sync-iocb.patch
Use a sync iocb for generic_file_read

llzpr.patch
Reduce scheduling latency across zap_page_range

buffermem.patch
Resurrect buffermem accounting

lpp.patch
ia32 huge tlb pages

lpp-update.patch
hugetlbpage fixes

reversemaps-leak.patch
Fix reverse map accounting leak

sharedmem.patch
Add /proc/meminfo:Mapped - tha amount of memory which is mapped into pagetables

ext3-sb.patch
u.ext3_sb -> generic_sbp

pagevec_lru_add.patch
Run readpage before dropping the page refcount

oom-fix.patch
Fix an OOM condition on big highmem machines

tlb-cleanup.patch
Clean up the tlb gather code

dump-stack.patch
arch-neutral dump_stack() function

wli-cleanup.patch
random cleanups

madvise-move.patch
move mdavise implementation into mm/madvise.c

split-vma.patch
VMA splitting patch

mmap-fixes.patch
mmap.c cleanup and lock ranking fixes

buffer-ops-move.patch
Move submit_bh() and ll_rw_block() into fs/buffer.c

slab-stats.patch
Display total slab memory in /proc/meminfo

writeback-control.patch
Cleanup and extension of the writeback paths

free_area_init-cleanup.patch
free_area_init() code cleanup

alloc_pages-cleanup.patch
alloc_pages cleanup and optimisation

statm_pgd_range-sucks.patch
Remove the pagetable walk from /proc/stat

remove-sync_thresh.patch
Remove /proc/sys/vm/dirty_sync_thresh

taka-writev.patch
Speed up writev

pf_nowarn.patch
Fix up the handling of PF_NOWARN

jeremy.patch
Spel Jermy's naim wright

queue-congestion.patch
Infrastructure for communicating request queue congestion to the VM

nonblocking-ext2-preread.patch
avoid ext2 inode prereads if the queue is congested

nonblocking-pdflush.patch
non-blocking writeback infrastructure, use it for pdflush

nonblocking-vm.patch
Non-blocking page reclaim

wake-speedup.patch
Faster wakeup code

vm-wakeups.patch
Use the faster wakeups in the VM and block layers

sync-helper.patch
Speed up sys_sync() against multiple spindles

slabasap.patch
Early and smarter shrinking of slabs

write-deadlock.patch
Fix the generic_file_write-from-same-mmapped-page deadlock

buddyinfo.patch
Add /proc/buddyinfo - stats on the free pages pool

free_area.patch
Remove struct free_area_struct and free_area_t, use `struct free_area'

per-node-kswapd.patch
Per-node kswapd instance

topology-api.patch
NUMA topology API

radix_tree_gang_lookup.patch
radix tree gang lookup

truncate_inode_pages.patch
truncate/invalidate_inode_pages rewrite

proc_vmstat.patch
Move the vm accounting out of /proc/stat

kswapd-reclaim-stats.patch
Add kswapd_steal to /proc/vmstat

iowait.patch
I/O wait statistics

tcp-wakeups.patch
Use fast wakeups in TCP/IPV4
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