Messages in this thread | | | Date | Mon, 09 Sep 2002 23:41:46 -0700 | From | Andrew Morton <> | Subject | 2.5.34-mm1 |
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url: http://www.zip.com.au/~akpm/linux/patches/2.5/2.5.34/2.5.34-mm1/
A fair amount of new stuff here. The testing status is "light".
Since 2.5.33-mm5:
-zone-pages-reporting.patch -enospc-recovery-fix.patch -fix-faults.patch -refill-rate.patch -refill-rate-fix.patch -copy_user_atomic.patch -kmap_atomic_reads.patch -kmap_atomic_writes.patch
Merged.
-filemap-integration.patch -filemap-integration-fixes.patch
Folded into readv-writev.patch
-slablru.patch -slablru-speedup.patch
We decided that there wasn't a lot of point in putting slab pages on the LRU. They're not really being aged on the LRU. Their presence on the LRU was merely telling us
(page reclaim pressure) * (proportion of slab pages)
and we can calculate that directly, without using the LRU for it.
+sharedmem.patch
Display in /proc/meminfo the amount of memory which is mapped into process address space.
+slab-stats.patch
Display total slab memory in /proc/meminfo
+free_area_init-cleanup.patch +alloc_pages-cleanup.patch
discontigmem code cleanups
+statm_pgd_range-sucks.patch
He's right. It does. Did.
+remove-sync_thresh.patch
Remove /proc/sys/vm/dirty_sync_ratio.
+sync-helper.patch
Speed up /bin/sync against multiple spindles
+slabasap.patch
A patch from Ed Tomlinson which improves the way in which the kernel reclaims slab objects.
The theory is: a cached object's usefulness is measured in terms of the number of disk seeks which is saves. Furthermore, we assume that one dentry or inode saves as many seeks as one pagecache page.
So we reap one slab object for each reaped pagecache page (actually, we _scan_ one slab object for each scanned pagecache page).
Furthermore we assume that one swapout costs twice as many seeks as one pagecache page, and twice as many seeks as one slab object. So we double the pressure on slab when anonymous pages are being considered for eviction.
The code works nicely, and smoothly. Possibly it does not shrink slab hard enough, but that is now very easy to tune up and down. It is just:
ratio *= 3;
in shrink_caches().
+write-deadlock.patch
Fix the write()-into-mmapped-page-which-got-evicted-at-the-wrong-time deadlock.
+segq.patch
Patch from Rik which makes the VM prefer to reclaim pagecache rather than pages which are mapped into process memory.
It makes the VM significantly less inclined to swap out and evict program text in the presence of heavy disk I/O, and is very nice.
Still needs a few things doing to it, but I'm running it on my desktop and it has caused a very noticeable decrease in suckiness.
Also, the `Buffers:' accounting in /proc/meminfo has been redone to not walk inode_unused. count_list() won't appear on profiles any more.
linus.patch cset-1.575-to-1.600.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
throttling-fix.patch Fix throttling of heavy write()rs.
sleeping-release_page.patch Allow a_ops->releasepage() to sleep again
dirty-state-accounting.patch Make the global dirty memory accounting more accurate
rd-cleanup.patch Cleanup and fix the ramdisk driver (doesn't work right yet)
discontig-cleanup-1.patch i386 discontigmem coding cleanups
discontig-cleanup-2.patch i386 discontigmem cleanups
writeback-thresholds.patch Downward adjustments to the default dirtymemory thresholds
buffer-strip.patch Limit the consumption of ZONE_NORMAL by buffer_heads
rmap-speedup.patch rmap pte_chain space and CPU reductions
wli-highpte.patch Resurrect CONFIG_HIGHPTE - ia32 pagetables in highmem
readv-writev.patch O_DIRECT support for readv/writev
llzpr.patch Reduce scheduling latency across zap_page_range
buffermem.patch Resurrect buffermem accounting
lpp.patch ia32 huge tlb pages
lpp2.patch hugetlbpage fixes
sharedmem.patch Add /proc/meminfo:Mapped - tha amount of memory which is mapped into pagetables
ext3-sb.patch u.ext3_sb -> generic_sbp
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
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
sync-helper.patch Speed up sys_sync()
slabasap.patch Early and smarter shrinking of slabs
write-deadlock.patch Fix the generic_file_write-from-same-mmapped-page deadlock
segq.patch Modified segmented queue algorithm for page aging - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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