From: Andrea Arcangeli <andrea@e-mind.com>
To: Steve Bergman <steve@netplus.net>, dlux@dlux.sch.bme.hu
Cc: Linus Torvalds <torvalds@transmeta.com>,
brent verner <damonbrent@earthlink.net>,
"Garst R. Reese" <reese@isn.net>,
Kalle Andersson <kalle.andersson@mbox303.swipnet.se>,
Zlatko Calusic <Zlatko.Calusic@CARNet.hr>,
Ben McCann <bmccann@indusriver.com>,
bredelin@ucsd.edu, linux-kernel@vger.rutgers.edu,
linux-mm@kvack.org, Alan Cox <alan@lxorguk.ukuu.org.uk>,
"Stephen C. Tweedie" <sct@redhat.com>
Subject: [patch] arca-vm-19 [Re: Results: Zlatko's new vm patch]
Date: Wed, 13 Jan 1999 21:47:45 +0100 (CET) [thread overview]
Message-ID: <Pine.LNX.3.96.990113213203.1822B-100000@laser.bogus> (raw)
In-Reply-To: <369ABFB4.C420E5AE@netplus.net>
I produced a new arca-vm-19. I would like if you could try it. I don't
know if it will work well as previous one...
You could try it on 128Mbyte:
1. with the bootup pager settings (8 2 2 5 32 128 256).
2. after `echo 10 2 2 5 32 128 256 >/proc/sys/vm/pager`
3. after `echo 8 2 2 10 32 128 256 >/proc/sys/vm/pager`
4. after `echo 8 2 2 5 32 32 256 >/proc/sys/vm/pager`
5. after `echo 8 2 2 5 32 128 512 >/proc/sys/vm/pager`
6. after `echo 8 2 2 5 64 128 512 >/proc/sys/vm/pager`
NOTENOTE: if the performances of `1.' are worse than arca-vm-18, don't
_waste_ time trying other pager settings of course ;).
Again the main differeces is free_user_and_cache() implementation. Now I
try to balance the swap cache to the 5% of total memeory during heavy
swapping activities. I do that growing the cache slowly from the point
shrink_mmap start failing. This _seems_ to work pretty well (the cache
levels seems more balanced than arca-vm-18). But again I based the
behavior on an fixed number (this time tunable via sysctl). I tried
inventing some new autotuning algorithm but it seems that everything I
done was performing worse than both arca-vm-18 and arca-vm-19 (the new
below).
Andrea Arcangeli
arca-vm-19 against pre7.gz (in the testing directory), I hope to have
included everything in this diff...
Index: linux/mm/filemap.c
diff -u linux/mm/filemap.c:1.1.1.9 linux/mm/filemap.c:1.1.1.1.2.46
--- linux/mm/filemap.c:1.1.1.9 Thu Jan 7 12:21:35 1999
+++ linux/mm/filemap.c Wed Jan 13 21:23:38 1999
@@ -121,14 +125,11 @@
int shrink_mmap(int priority, int gfp_mask)
{
static unsigned long clock = 0;
- unsigned long limit = num_physpages;
struct page * page;
- int count;
-
- count = (limit << 1) >> priority;
+ unsigned long count = num_physpages / (priority+1);
page = mem_map + clock;
- do {
+ while (count-- != 0) {
int referenced;
/* This works even in the presence of PageSkip because
@@ -147,7 +148,6 @@
clock = page->map_nr;
}
- count--;
referenced = test_and_clear_bit(PG_referenced, &page->flags);
if (PageLocked(page))
@@ -160,21 +160,6 @@
if (atomic_read(&page->count) != 1)
continue;
- /*
- * Is it a page swap page? If so, we want to
- * drop it if it is no longer used, even if it
- * were to be marked referenced..
- */
- if (PageSwapCache(page)) {
- if (referenced && swap_count(page->offset) != 1)
- continue;
- delete_from_swap_cache(page);
- return 1;
- }
-
- if (referenced)
- continue;
-
/* Is it a buffer page? */
if (page->buffers) {
if (buffer_under_min())
@@ -184,6 +169,14 @@
return 1;
}
+ if (referenced)
+ continue;
+
+ if (PageSwapCache(page)) {
+ delete_from_swap_cache(page);
+ return 1;
+ }
+
/* is it a page-cache page? */
if (page->inode) {
if (pgcache_under_min())
@@ -191,8 +184,7 @@
remove_inode_page(page);
return 1;
}
-
- } while (count > 0);
+ }
return 0;
}
Index: linux/mm/mmap.c
diff -u linux/mm/mmap.c:1.1.1.2 linux/mm/mmap.c:1.1.1.1.2.12
--- linux/mm/mmap.c:1.1.1.2 Fri Nov 27 11:19:10 1998
+++ linux/mm/mmap.c Wed Jan 13 21:23:38 1999
@@ -66,7 +66,7 @@
free += page_cache_size;
free += nr_free_pages;
free += nr_swap_pages;
- free -= (page_cache.min_percent + buffer_mem.min_percent + 2)*num_physpages/100;
+ free -= (pager_daemon.cache_min_percent + pager_daemon.buffer_min_percent + 2)*num_physpages/100;
return free > pages;
}
Index: linux/mm/page_alloc.c
diff -u linux/mm/page_alloc.c:1.1.1.8 linux/mm/page_alloc.c:1.1.1.1.2.30
--- linux/mm/page_alloc.c:1.1.1.8 Mon Jan 11 22:24:23 1999
+++ linux/mm/page_alloc.c Wed Jan 13 21:23:38 1999
@@ -124,7 +124,6 @@
if (!PageReserved(page) && atomic_dec_and_test(&page->count)) {
if (PageSwapCache(page))
panic ("Freeing swap cache page");
- page->flags &= ~(1 << PG_referenced);
free_pages_ok(page->map_nr, 0);
return;
}
@@ -141,7 +140,6 @@
if (atomic_dec_and_test(&map->count)) {
if (PageSwapCache(map))
panic ("Freeing swap cache pages");
- map->flags &= ~(1 << PG_referenced);
free_pages_ok(map_nr, order);
return;
}
@@ -212,19 +210,18 @@
* further thought.
*/
if (!(current->flags & PF_MEMALLOC)) {
- static int trashing = 0;
int freed;
if (nr_free_pages > freepages.min) {
- if (!trashing)
+ if (!current->trashing)
goto ok_to_allocate;
if (nr_free_pages > freepages.low) {
- trashing = 0;
+ current->trashing = 0;
goto ok_to_allocate;
}
}
- trashing = 1;
+ current->trashing = 1;
current->flags |= PF_MEMALLOC;
freed = try_to_free_pages(gfp_mask);
current->flags &= ~PF_MEMALLOC;
@@ -353,10 +350,10 @@
unsigned long offset = SWP_OFFSET(entry);
struct swap_info_struct *swapdev = SWP_TYPE(entry) + swap_info;
- offset = (offset >> page_cluster) << page_cluster;
-
for (i = 1 << page_cluster; i > 0; i--) {
- if (offset >= swapdev->max)
+ if (offset >= swapdev->max ||
+ /* don't block on I/O for doing readahead -arca */
+ atomic_read(&nr_async_pages) > pager_daemon.max_async_pages)
return;
if (!swapdev->swap_map[offset] ||
swapdev->swap_map[offset] == SWAP_MAP_BAD ||
Index: linux/mm/page_io.c
diff -u linux/mm/page_io.c:1.1.1.4 linux/mm/page_io.c:1.1.1.1.2.6
--- linux/mm/page_io.c:1.1.1.4 Tue Dec 29 01:39:20 1998
+++ linux/mm/page_io.c Wed Jan 13 00:00:04 1999
@@ -58,7 +58,7 @@
}
/* Don't allow too many pending pages in flight.. */
- if (atomic_read(&nr_async_pages) > pager_daemon.swap_cluster)
+ if (atomic_read(&nr_async_pages) > pager_daemon.max_async_pages)
wait = 1;
p = &swap_info[type];
Index: linux/mm/swap.c
diff -u linux/mm/swap.c:1.1.1.6 linux/mm/swap.c:1.1.1.1.2.13
--- linux/mm/swap.c:1.1.1.6 Mon Jan 11 22:24:24 1999
+++ linux/mm/swap.c Wed Jan 13 21:23:38 1999
@@ -40,41 +40,18 @@
};
/* How many pages do we try to swap or page in/out together? */
-int page_cluster = 4; /* Default value modified in swap_setup() */
+int page_cluster = 5; /* Default readahead 32 pages every time */
/* We track the number of pages currently being asynchronously swapped
out, so that we don't try to swap TOO many pages out at once */
atomic_t nr_async_pages = ATOMIC_INIT(0);
-buffer_mem_t buffer_mem = {
+pager_daemon_t pager_daemon = {
+ 8, /* starting priority of try_to_free_pages() */
2, /* minimum percent buffer */
- 10, /* borrow percent buffer */
- 60 /* maximum percent buffer */
-};
-
-buffer_mem_t page_cache = {
2, /* minimum percent page cache */
- 15, /* borrow percent page cache */
- 75 /* maximum */
-};
-
-pager_daemon_t pager_daemon = {
- 512, /* base number for calculating the number of tries */
- SWAP_CLUSTER_MAX, /* minimum number of tries */
- SWAP_CLUSTER_MAX, /* do swap I/O in clusters of this size */
+ 5, /* minimum percent swap page cache */
+ 32, /* number of tries we do on every try_to_free_pages() */
+ 128, /* do swap I/O in clusters of this size */
+ 256 /* max number of async swapped-out pages on the fly */
};
-
-/*
- * Perform any setup for the swap system
- */
-
-void __init swap_setup(void)
-{
- /* Use a smaller cluster for memory <16MB or <32MB */
- if (num_physpages < ((16 * 1024 * 1024) >> PAGE_SHIFT))
- page_cluster = 2;
- else if (num_physpages < ((32 * 1024 * 1024) >> PAGE_SHIFT))
- page_cluster = 3;
- else
- page_cluster = 4;
-}
Index: linux/mm/swapfile.c
diff -u linux/mm/swapfile.c:1.1.1.3 linux/mm/swapfile.c:1.1.1.1.2.6
--- linux/mm/swapfile.c:1.1.1.3 Mon Jan 11 22:24:24 1999
+++ linux/mm/swapfile.c Wed Jan 13 00:00:04 1999
@@ -23,7 +23,6 @@
struct swap_info_struct swap_info[MAX_SWAPFILES];
-#define SWAPFILE_CLUSTER 256
static inline int scan_swap_map(struct swap_info_struct *si)
{
@@ -31,7 +30,7 @@
/*
* We try to cluster swap pages by allocating them
* sequentially in swap. Once we've allocated
- * SWAPFILE_CLUSTER pages this way, however, we resort to
+ * SWAP_CLUSTER pages this way, however, we resort to
* first-free allocation, starting a new cluster. This
* prevents us from scattering swap pages all over the entire
* swap partition, so that we reduce overall disk seek times
@@ -47,7 +46,7 @@
goto got_page;
}
}
- si->cluster_nr = SWAPFILE_CLUSTER;
+ si->cluster_nr = SWAP_CLUSTER;
for (offset = si->lowest_bit; offset <= si->highest_bit ; offset++) {
if (si->swap_map[offset])
continue;
Index: linux/mm/vmscan.c
diff -u linux/mm/vmscan.c:1.1.1.12 linux/mm/vmscan.c:1.1.1.1.2.91
--- linux/mm/vmscan.c:1.1.1.12 Mon Jan 11 22:24:24 1999
+++ linux/mm/vmscan.c Wed Jan 13 21:23:38 1999
@@ -10,6 +10,11 @@
* Version: $Id: vmscan.c,v 1.5 1998/02/23 22:14:28 sct Exp $
*/
+/*
+ * free_user_and_cache() and always async swapout original idea.
+ * Copyright (C) 1999 Andrea Arcangeli
+ */
+
#include <linux/slab.h>
#include <linux/kernel_stat.h>
#include <linux/swap.h>
@@ -20,6 +25,8 @@
#include <asm/pgtable.h>
+int swapout_interval = HZ;
+
/*
* The swap-out functions return 1 if they successfully
* threw something out, and we got a free page. It returns
@@ -71,6 +78,21 @@
* memory, and we should just continue our scan.
*/
if (PageSwapCache(page_map)) {
+ if (pte_write(pte))
+ {
+ struct page *found;
+ printk ("VM: Found a writable swap-cached page!\n");
+ /* Try to diagnose the problem ... */
+ found = find_page(&swapper_inode, page_map->offset);
+ if (found) {
+ printk("page=%p@%08lx, found=%p, count=%d\n",
+ page_map, page_map->offset,
+ found, atomic_read(&found->count));
+ __free_page(found);
+ } else
+ printk ("Spurious, page not in cache\n");
+ return 0;
+ }
entry = page_map->offset;
swap_duplicate(entry);
set_pte(page_table, __pte(entry));
@@ -199,7 +221,7 @@
do {
int result;
- tsk->swap_address = address + PAGE_SIZE;
+ tsk->mm->swap_address = address + PAGE_SIZE;
result = try_to_swap_out(tsk, vma, address, pte, gfp_mask);
if (result)
return result;
@@ -271,7 +293,7 @@
/*
* Go through process' page directory.
*/
- address = p->swap_address;
+ address = p->mm->swap_address;
/*
* Find the proper vm-area
@@ -293,8 +315,8 @@
}
/* We didn't find anything for the process */
- p->swap_cnt = 0;
- p->swap_address = 0;
+ p->mm->swap_cnt = 0;
+ p->mm->swap_address = 0;
return 0;
}
@@ -306,7 +328,8 @@
static int swap_out(unsigned int priority, int gfp_mask)
{
struct task_struct * p, * pbest;
- int counter, assign, max_cnt;
+ int counter, assign;
+ unsigned long max_cnt;
/*
* We make one or two passes through the task list, indexed by
@@ -325,7 +348,7 @@
counter = nr_tasks / (priority+1);
if (counter < 1)
counter = 1;
- if (counter > nr_tasks)
+ else if (counter > nr_tasks)
counter = nr_tasks;
for (; counter >= 0; counter--) {
@@ -338,13 +361,13 @@
for (; p != &init_task; p = p->next_task) {
if (!p->swappable)
continue;
- if (p->mm->rss <= 0)
+ if (p->mm->rss == 0)
continue;
/* Refresh swap_cnt? */
if (assign)
- p->swap_cnt = p->mm->rss;
- if (p->swap_cnt > max_cnt) {
- max_cnt = p->swap_cnt;
+ p->mm->swap_cnt = p->mm->rss;
+ if (p->mm->swap_cnt > max_cnt) {
+ max_cnt = p->mm->swap_cnt;
pbest = p;
}
}
@@ -375,8 +398,6 @@
int i;
char *revision="$Revision: 1.5 $", *s, *e;
- swap_setup();
-
if ((s = strchr(revision, ':')) &&
(e = strchr(s, '$')))
s++, i = e - s;
@@ -430,7 +451,7 @@
break;
current->state = TASK_INTERRUPTIBLE;
run_task_queue(&tq_disk);
- schedule_timeout(HZ);
+ schedule_timeout(swapout_interval);
/*
* kswapd isn't even meant to keep up with anything,
@@ -438,13 +459,36 @@
* point is to make sure that the system doesn't stay
* forever in a really bad memory squeeze.
*/
- if (nr_free_pages < freepages.high)
+ if (nr_free_pages < freepages.min)
try_to_free_pages(GFP_KSWAPD);
}
return 0;
}
+static int free_user_and_cache(int priority, int gfp_mask)
+{
+ int freed, swapped = 0;
+ static int grow_swap_cache_mode = 0;
+
+ if (!grow_swap_cache_mode)
+ {
+ freed = shrink_mmap(priority, gfp_mask);
+ if (!freed)
+ {
+ grow_swap_cache_mode = 1;
+ swapped = swap_out(priority, gfp_mask);
+ }
+ } else {
+ if (!swpcache_under_min())
+ grow_swap_cache_mode = 0;
+ swapped = swap_out(priority, gfp_mask);
+ freed = shrink_mmap(priority, gfp_mask);
+ }
+
+ return freed || swapped;
+}
+
/*
* We need to make the locks finer granularity, but right
* now we need this so that we can do page allocations
@@ -457,34 +501,33 @@
int try_to_free_pages(unsigned int gfp_mask)
{
int priority;
- int count = SWAP_CLUSTER_MAX;
+ static int state = 0;
+ int count = pager_daemon.tries;
lock_kernel();
-
- /* Always trim SLAB caches when memory gets low. */
- kmem_cache_reap(gfp_mask);
-
- priority = 6;
- do {
- while (shrink_mmap(priority, gfp_mask)) {
- if (!--count)
- goto done;
- }
- /* Try to get rid of some shared memory pages.. */
- while (shm_swap(priority, gfp_mask)) {
- if (!--count)
- goto done;
- }
-
- /* Then, try to page stuff out.. */
- while (swap_out(priority, gfp_mask)) {
- if (!--count)
- goto done;
- }
+ priority = pager_daemon.priority;
+ switch (state)
+ {
+ do {
+ case 0:
+ while (free_user_and_cache(priority, gfp_mask)) {
+ if (!--count)
+ goto done;
+ }
+ state = 1;
+ case 1:
+ /* Try to get rid of some shared memory pages.. */
+ while (shm_swap(priority, gfp_mask)) {
+ if (!--count)
+ goto done;
+ }
+ state = 0;
- shrink_dcache_memory(priority, gfp_mask);
- } while (--priority >= 0);
+ kmem_cache_reap(gfp_mask);
+ shrink_dcache_memory(priority, gfp_mask);
+ } while (--priority >= 0);
+ }
done:
unlock_kernel();
Index: linux/kernel/fork.c
diff -u linux/kernel/fork.c:1.1.1.6 linux/kernel/fork.c:1.1.1.1.2.10
--- linux/kernel/fork.c:1.1.1.6 Mon Jan 11 22:24:21 1999
+++ linux/kernel/fork.c Mon Jan 11 22:56:09 1999
@@ -511,6 +514,7 @@
p->did_exec = 0;
p->swappable = 0;
+ p->trashing = 0;
p->state = TASK_UNINTERRUPTIBLE;
copy_flags(clone_flags, p);
Index: linux/kernel/sysctl.c
diff -u linux/kernel/sysctl.c:1.1.1.6 linux/kernel/sysctl.c:1.1.1.1.2.12
--- linux/kernel/sysctl.c:1.1.1.6 Mon Jan 11 22:24:22 1999
+++ linux/kernel/sysctl.c Wed Jan 13 21:23:38 1999
@@ -32,7 +32,7 @@
/* External variables not in a header file. */
extern int panic_timeout;
-extern int console_loglevel, C_A_D;
+extern int console_loglevel, C_A_D, swapout_interval;
extern int bdf_prm[], bdflush_min[], bdflush_max[];
extern char binfmt_java_interpreter[], binfmt_java_appletviewer[];
extern int sysctl_overcommit_memory;
@@ -216,6 +216,8 @@
};
static ctl_table vm_table[] = {
+ {VM_SWAPOUT, "swapout_interval",
+ &swapout_interval, sizeof(int), 0644, NULL, &proc_dointvec},
{VM_FREEPG, "freepages",
&freepages, sizeof(freepages_t), 0644, NULL, &proc_dointvec},
{VM_BDFLUSH, "bdflush", &bdf_prm, 9*sizeof(int), 0600, NULL,
@@ -223,11 +225,7 @@
&bdflush_min, &bdflush_max},
{VM_OVERCOMMIT_MEMORY, "overcommit_memory", &sysctl_overcommit_memory,
sizeof(sysctl_overcommit_memory), 0644, NULL, &proc_dointvec},
- {VM_BUFFERMEM, "buffermem",
- &buffer_mem, sizeof(buffer_mem_t), 0644, NULL, &proc_dointvec},
- {VM_PAGECACHE, "pagecache",
- &page_cache, sizeof(buffer_mem_t), 0644, NULL, &proc_dointvec},
- {VM_PAGERDAEMON, "kswapd",
+ {VM_PAGERDAEMON, "pager",
&pager_daemon, sizeof(pager_daemon_t), 0644, NULL, &proc_dointvec},
{VM_PGT_CACHE, "pagetable_cache",
&pgt_cache_water, 2*sizeof(int), 0600, NULL, &proc_dointvec},
Index: linux/include/linux/mm.h
diff -u linux/include/linux/mm.h:1.1.1.6 linux/include/linux/mm.h:1.1.1.1.2.20
--- linux/include/linux/mm.h:1.1.1.6 Mon Jan 11 22:23:57 1999
+++ linux/include/linux/mm.h Wed Jan 13 21:23:36 1999
@@ -118,7 +118,6 @@
unsigned long offset;
struct page *next_hash;
atomic_t count;
- unsigned int unused;
unsigned long flags; /* atomic flags, some possibly updated asynchronously */
struct wait_queue *wait;
struct page **pprev_hash;
@@ -302,8 +301,7 @@
/* filemap.c */
extern void remove_inode_page(struct page *);
-extern unsigned long page_unuse(struct page *);
-extern int shrink_mmap(int, int);
+extern int FASTCALL(shrink_mmap(int, int));
extern void truncate_inode_pages(struct inode *, unsigned long);
extern unsigned long get_cached_page(struct inode *, unsigned long, int);
extern void put_cached_page(unsigned long);
@@ -387,9 +385,11 @@
}
#define buffer_under_min() ((buffermem >> PAGE_SHIFT) * 100 < \
- buffer_mem.min_percent * num_physpages)
-#define pgcache_under_min() (page_cache_size * 100 < \
- page_cache.min_percent * num_physpages)
+ pager_daemon.buffer_min_percent * num_physpages)
+#define pgcache_under_min() ((page_cache_size-swapper_inode.i_nrpages) * 100 < \
+ pager_daemon.cache_min_percent * num_physpages)
+#define swpcache_under_min() (swapper_inode.i_nrpages * 100 < \
+ pager_daemon.swap_min_percent * num_physpages)
#endif /* __KERNEL__ */
Index: linux/include/linux/sched.h
diff -u linux/include/linux/sched.h:1.1.1.6 linux/include/linux/sched.h:1.1.1.1.2.12
--- linux/include/linux/sched.h:1.1.1.6 Mon Jan 11 22:24:03 1999
+++ linux/include/linux/sched.h Wed Jan 13 00:00:03 1999
@@ -169,6 +174,7 @@
unsigned long rss, total_vm, locked_vm;
unsigned long def_flags;
unsigned long cpu_vm_mask;
+ unsigned long swap_cnt, swap_address;
/*
* This is an architecture-specific pointer: the portable
* part of Linux does not know about any segments.
@@ -177,15 +183,17 @@
};
#define INIT_MM { \
- &init_mmap, NULL, swapper_pg_dir, \
+ &init_mmap, NULL, swapper_pg_dir, \
ATOMIC_INIT(1), 1, \
MUTEX, \
0, \
0, 0, 0, 0, \
- 0, 0, 0, \
+ 0, 0, 0, \
0, 0, 0, 0, \
0, 0, 0, \
- 0, 0, NULL }
+ 0, 0, \
+ 0, 0, \
+ NULL }
struct signal_struct {
atomic_t count;
@@ -270,8 +278,7 @@
/* mm fault and swap info: this can arguably be seen as either mm-specific or thread-specific */
unsigned long min_flt, maj_flt, nswap, cmin_flt, cmaj_flt, cnswap;
int swappable:1;
- unsigned long swap_address;
- unsigned long swap_cnt; /* number of pages to swap on next pass */
+ int trashing:1;
/* process credentials */
uid_t uid,euid,suid,fsuid;
gid_t gid,egid,sgid,fsgid;
@@ -355,7 +362,7 @@
/* utime */ {0,0,0,0},0, \
/* per CPU times */ {0, }, {0, }, \
/* flt */ 0,0,0,0,0,0, \
-/* swp */ 0,0,0, \
+/* swp */ 0,0, \
/* process credentials */ \
/* uid etc */ 0,0,0,0,0,0,0,0, \
/* suppl grps*/ 0, {0,}, \
Index: linux/include/linux/swapctl.h
diff -u linux/include/linux/swapctl.h:1.1.1.4 linux/include/linux/swapctl.h:1.1.1.1.2.5
--- linux/include/linux/swapctl.h:1.1.1.4 Mon Jan 11 22:24:05 1999
+++ linux/include/linux/swapctl.h Wed Jan 13 21:23:36 1999
@@ -4,32 +4,24 @@
#include <asm/page.h>
#include <linux/fs.h>
-typedef struct buffer_mem_v1
+typedef struct freepages_s
{
- unsigned int min_percent;
- unsigned int borrow_percent;
- unsigned int max_percent;
-} buffer_mem_v1;
-typedef buffer_mem_v1 buffer_mem_t;
-extern buffer_mem_t buffer_mem;
-extern buffer_mem_t page_cache;
-
-typedef struct freepages_v1
-{
unsigned int min;
unsigned int low;
unsigned int high;
-} freepages_v1;
-typedef freepages_v1 freepages_t;
+} freepages_t;
extern freepages_t freepages;
-typedef struct pager_daemon_v1
+typedef struct pager_daemon_s
{
- unsigned int tries_base;
- unsigned int tries_min;
+ unsigned int priority;
+ unsigned int buffer_min_percent;
+ unsigned int cache_min_percent;
+ unsigned int swap_min_percent;
+ unsigned int tries;
unsigned int swap_cluster;
-} pager_daemon_v1;
-typedef pager_daemon_v1 pager_daemon_t;
+ unsigned int max_async_pages;
+} pager_daemon_t;
extern pager_daemon_t pager_daemon;
#endif /* _LINUX_SWAPCTL_H */
Index: linux/include/linux/swap.h
diff -u linux/include/linux/swap.h:1.1.1.6 linux/include/linux/swap.h:1.1.1.1.2.17
--- linux/include/linux/swap.h:1.1.1.6 Mon Jan 11 22:24:05 1999
+++ linux/include/linux/swap.h Wed Jan 13 21:28:52 1999
@@ -33,7 +33,7 @@
#define SWP_USED 1
#define SWP_WRITEOK 3
-#define SWAP_CLUSTER_MAX 32
+#define SWAP_CLUSTER (pager_daemon.swap_cluster)
#define SWAP_MAP_MAX 0x7fff
#define SWAP_MAP_BAD 0x8000
@@ -68,9 +68,6 @@
/* linux/ipc/shm.c */
extern int shm_swap (int, int);
-
-/* linux/mm/swap.c */
-extern void swap_setup (void);
/* linux/mm/vmscan.c */
extern int try_to_free_pages(unsigned int gfp_mask);
--
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next prev parent reply other threads:[~1999-01-13 20:57 UTC|newest]
Thread overview: 243+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <199812290146.BAA12687@terrorserver.swansea.linux.org.uk>
1998-12-31 18:00 ` 2.2.0 Bug summary Andrea Arcangeli
1998-12-31 18:34 ` [patch] new-vm improvement [Re: 2.2.0 Bug summary] Andrea Arcangeli
1999-01-01 0:16 ` Steve Bergman
1999-01-01 17:16 ` Andrea Arcangeli
1999-01-01 16:44 ` Andrea Arcangeli
1999-01-01 20:02 ` Andrea Arcangeli
1999-01-01 23:46 ` Steve Bergman
1999-01-02 6:55 ` Linus Torvalds
1999-01-02 8:33 ` Steve Bergman
1999-01-02 14:48 ` Andrea Arcangeli
1999-01-02 15:38 ` Andrea Arcangeli
1999-01-02 18:10 ` Linus Torvalds
1999-01-02 20:52 ` Andrea Arcangeli
1999-01-03 2:59 ` Andrea Arcangeli
1999-01-04 18:08 ` [patch] arca-vm-6, killed kswapd [Re: [patch] new-vm improvement , [Re: 2.2.0 Bug summary]] Andrea Arcangeli
1999-01-04 20:56 ` Linus Torvalds
1999-01-04 21:10 ` Rik van Riel
1999-01-04 22:04 ` Alan Cox
1999-01-04 21:55 ` Linus Torvalds
1999-01-04 22:51 ` Andrea Arcangeli
1999-01-05 0:32 ` Andrea Arcangeli
1999-01-05 0:52 ` Zlatko Calusic
1999-01-05 3:02 ` Zlatko Calusic
1999-01-05 11:49 ` Andrea Arcangeli
1999-01-05 13:23 ` Zlatko Calusic
1999-01-05 15:42 ` Andrea Arcangeli
1999-01-05 16:16 ` Zlatko Calusic
1999-01-05 15:35 ` arca-vm-8 [Re: [patch] arca-vm-6, killed kswapd [Re: [patch] new-vm , improvement , [Re: 2.2.0 Bug summary]]] Andrea Arcangeli
1999-01-06 14:48 ` Andrea Arcangeli
1999-01-06 23:31 ` Andrea Arcangeli
1999-01-07 3:32 ` Results: 2.2.0-pre5 vs arcavm10 vs arcavm9 vs arcavm7 Steve Bergman
1999-01-07 12:02 ` Andrea Arcangeli
1999-01-07 20:27 ` Linus Torvalds
1999-01-07 23:56 ` Andrea Arcangeli
1999-01-07 17:35 ` Linus Torvalds
1999-01-07 18:44 ` Zlatko Calusic
1999-01-07 19:33 ` Linus Torvalds
1999-01-07 21:10 ` Zlatko Calusic
1999-01-07 19:38 ` Zlatko Calusic
1999-01-07 19:40 ` Andrea Arcangeli
1999-01-09 6:28 ` 2.2.0-pre[56] swap performance poor with > 1 thrashing task Dax Kelson
1999-01-09 6:32 ` Zlatko Calusic
1999-01-09 6:44 ` Linus Torvalds
1999-01-09 18:58 ` Andrea Arcangeli
1999-01-11 9:21 ` Buffer handling (setting PG_referenced on access) Zlatko Calusic
1999-01-11 17:44 ` Linus Torvalds
1999-01-11 20:14 ` Zlatko Calusic
1999-01-16 17:35 ` 2.2.0-pre[56] swap performance poor with > 1 thrashing task Andrea Arcangeli
1999-01-09 7:48 ` Benjamin Redelings I
1999-01-09 6:53 ` Linus Torvalds
1999-01-09 22:39 ` Results: pre6 vs pre6+zlatko's_patch vs pre5 vs arcavm13 Steve Bergman
1999-01-10 0:28 ` Steve Bergman
1999-01-10 5:35 ` Linus Torvalds
1999-01-10 18:33 ` Andrea Arcangeli
1999-01-10 18:43 ` Steve Bergman
1999-01-10 19:08 ` Linus Torvalds
1999-01-10 19:23 ` Vladimir Dergachev
1999-01-10 20:09 ` Andrea Arcangeli
1999-01-10 20:29 ` Steve Bergman
1999-01-10 21:41 ` Linus Torvalds
1999-01-10 23:33 ` testing/pre-7 and do_poll() Chip Salzenberg
1999-01-11 6:02 ` Linus Torvalds
1999-01-11 6:26 ` Chip Salzenberg
1999-01-11 6:46 ` Linus Torvalds
1999-01-11 6:59 ` Chip Salzenberg
1999-01-11 7:02 ` Linus Torvalds
1999-01-11 22:08 ` Shawn Leas
1999-01-11 22:13 ` Linus Torvalds
1999-01-12 0:25 ` estafford
1999-01-12 8:25 ` Shawn Leas
1999-01-12 7:06 ` Gregory Maxwell
1999-01-11 20:20 ` Adam Heath
1999-01-11 16:57 ` Results: pre6 vs pre6+zlatko's_patch vs pre5 vs arcavm13 Steve Bergman
1999-01-11 19:36 ` Andrea Arcangeli
1999-01-11 23:03 ` Andrea Arcangeli
1999-01-11 23:38 ` Zlatko Calusic
1999-01-12 2:02 ` Steve Bergman
1999-01-12 3:21 ` Results: Zlatko's new vm patch Steve Bergman
1999-01-12 5:33 ` Linus Torvalds
1999-01-12 14:49 ` Andrea Arcangeli
1999-01-12 16:58 ` Joseph Anthony
1999-01-12 18:16 ` Stephen C. Tweedie
1999-01-12 20:15 ` Michael K Vance
1999-01-13 19:25 ` Stephen C. Tweedie
1999-01-12 18:24 ` Michael K Vance
1999-01-13 0:01 ` Where to find pre7. Was: " Robert Thorncrantz
1999-01-13 20:47 ` Andrea Arcangeli [this message]
1999-01-14 12:30 ` [patch] arca-vm-19 [Re: Results: Zlatko's new vm patch] Andrea Arcangeli
1999-01-15 23:56 ` [patch] NEW: arca-vm-21, swapout via shrink_mmap using PG_dirty Andrea Arcangeli
1999-01-16 16:49 ` Andrea Arcangeli
1999-01-17 23:47 ` Andrea Arcangeli
1999-01-18 5:11 ` Linus Torvalds
1999-01-18 7:28 ` Eric W. Biederman
1999-01-18 10:00 ` Andrea Arcangeli
1999-01-18 9:15 ` Andrea Arcangeli
1999-01-18 17:49 ` Linus Torvalds
1999-01-18 19:22 ` Andrea Arcangeli
1999-01-10 20:40 ` Results: pre6 vs pre6+zlatko's_patch vs pre5 vs arcavm13 Andrea Arcangeli
1999-01-10 20:50 ` Linus Torvalds
1999-01-10 21:01 ` Andrea Arcangeli
1999-01-10 21:51 ` Steve Bergman
1999-01-10 22:50 ` Results: arcavm15, et. al Steve Bergman
1999-01-11 0:20 ` Steve Bergman
1999-01-11 13:21 ` Andrea Arcangeli
1999-01-11 3:47 ` Results: pre6 vs pre6+zlatko's_patch vs pre5 vs arcavm13 Gregory Maxwell
1999-01-06 23:35 ` arca-vm-8 [Re: [patch] arca-vm-6, killed kswapd [Re: [patch] new-vm , improvement , [Re: 2.2.0 Bug summary]]] Linus Torvalds
1999-01-07 4:30 ` Eric W. Biederman
1999-01-07 17:56 ` Linus Torvalds
1999-01-07 18:18 ` Rik van Riel
1999-01-07 19:19 ` arca-vm-8 [Re: [patch] arca-vm-6, killed kswapd [Re: [patch] Alan Cox
1999-01-07 18:55 ` arca-vm-8 [Re: [patch] arca-vm-6, killed kswapd [Re: [patch] new-vm , improvement , [Re: 2.2.0 Bug summary]]] Zlatko Calusic
1999-01-07 22:57 ` Linus Torvalds
1999-01-08 1:16 ` Linus Torvalds
1999-01-08 10:45 ` Andrea Arcangeli
1999-01-08 19:06 ` Linus Torvalds
1999-01-09 9:43 ` MM deadlock [was: Re: arca-vm-8...] Savochkin Andrey Vladimirovich
1999-01-09 18:00 ` Linus Torvalds
1999-01-09 18:41 ` Andrea Arcangeli
1999-01-10 21:41 ` Stephen C. Tweedie
1999-01-10 21:47 ` Linus Torvalds
1999-01-09 21:50 ` Linus Torvalds
1999-01-10 11:56 ` Savochkin Andrey Vladimirovich
1999-01-10 17:59 ` Andrea Arcangeli
1999-01-10 22:33 ` Stephen C. Tweedie
1999-01-10 16:59 ` Stephen C. Tweedie
1999-01-10 18:13 ` Andrea Arcangeli
1999-01-10 18:35 ` Linus Torvalds
1999-01-10 19:45 ` Alan Cox
1999-01-10 19:03 ` Andrea Arcangeli
1999-01-10 21:39 ` Stephen C. Tweedie
1999-01-10 19:09 ` Linus Torvalds
1999-01-10 20:33 ` Alan Cox
1999-01-10 20:07 ` Linus Torvalds
1999-01-10 22:18 ` Stephen C. Tweedie
1999-01-10 22:49 ` Stephen C. Tweedie
1999-01-11 6:04 ` Eric W. Biederman
1999-01-12 16:06 ` Stephen C. Tweedie
1999-01-12 17:54 ` Linus Torvalds
1999-01-12 18:44 ` Zlatko Calusic
1999-01-12 19:05 ` Andrea Arcangeli
1999-01-13 17:48 ` Stephen C. Tweedie
1999-01-13 18:07 ` 2.2.0-pre6 ain't nice =( Kalle Andersson
1999-01-13 19:05 ` MM deadlock [was: Re: arca-vm-8...] Alan Cox
1999-01-13 19:23 ` MOLNAR Ingo
1999-01-13 19:26 ` Andrea Arcangeli
1999-01-14 11:02 ` Mike Jagdis
1999-01-14 22:38 ` Andrea Arcangeli
1999-01-15 7:40 ` Agus Budy Wuysang
1999-01-14 10:48 ` Mike Jagdis
1999-01-12 21:46 ` Rik van Riel
1999-01-13 6:52 ` Zlatko Calusic
1999-01-13 13:45 ` Andrea Arcangeli
1999-01-13 13:58 ` Chris Evans
1999-01-13 15:07 ` Andrea Arcangeli
1999-01-13 22:11 ` Stephen C. Tweedie
1999-01-13 14:59 ` Rik van Riel
1999-01-13 18:10 ` Andrea Arcangeli
1999-01-13 22:14 ` Stephen C. Tweedie
1999-01-14 14:53 ` Dr. Werner Fink
1999-01-21 16:50 ` Stephen C. Tweedie
1999-01-21 19:53 ` Andrea Arcangeli
1999-01-22 13:55 ` Stephen C. Tweedie
1999-01-22 19:45 ` Andrea Arcangeli
1999-01-23 23:20 ` Alan Cox
1999-01-24 0:19 ` Linus Torvalds
1999-01-24 18:33 ` Gregory Maxwell
1999-01-25 0:21 ` Linus Torvalds
1999-01-25 1:28 ` Alan Cox
1999-01-25 3:35 ` pmonta
1999-01-25 4:17 ` Linus Torvalds
1999-01-24 20:33 ` Alan Cox
1999-01-25 0:27 ` Linus Torvalds
1999-01-25 1:38 ` Alan Cox
1999-01-25 1:04 ` Andrea Arcangeli
1999-01-25 2:10 ` Alan Cox
1999-01-25 3:16 ` Garst R. Reese
1999-01-25 10:49 ` Alan Cox
1999-01-25 14:06 ` Rik van Riel
1999-01-25 21:59 ` Gerard Roudier
1999-01-26 11:45 ` Thomas Sailer
1999-01-26 20:48 ` Gerard Roudier
1999-01-26 21:24 ` Thomas Sailer
1999-01-27 0:25 ` David Lang
1999-01-27 16:05 ` Stephen C. Tweedie
1999-01-27 20:11 ` Gerard Roudier
1999-01-26 13:06 ` Stephen C. Tweedie
1999-01-26 14:28 ` Alan Cox
1999-01-26 14:15 ` MOLNAR Ingo
1999-01-26 14:36 ` yodaiken
1999-01-26 15:21 ` MOLNAR Ingo
1999-01-27 10:31 ` yodaiken
1999-01-26 15:46 ` Alan Cox
1999-01-26 16:45 ` Stephen C. Tweedie
1999-01-30 7:01 ` yodaiken
1999-02-01 13:07 ` Stephen C. Tweedie
1999-01-26 16:37 ` Stephen C. Tweedie
1999-01-27 11:35 ` Jakub Jelinek
1999-01-26 14:21 ` Rik van Riel
1999-01-25 16:25 ` Stephen C. Tweedie
1999-01-25 16:52 ` Andrea Arcangeli
1999-01-25 18:27 ` Linus Torvalds
1999-01-25 18:43 ` Stephen C. Tweedie
1999-01-25 18:49 ` Linus Torvalds
1999-01-25 18:43 ` Linus Torvalds
1999-01-25 19:15 ` Stephen C. Tweedie
1999-01-26 1:57 ` Andrea Arcangeli
1999-01-26 18:37 ` Andrea Arcangeli
1999-01-27 12:13 ` Stephen C. Tweedie
1999-01-22 16:29 ` Eric W. Biederman
1999-01-25 13:14 ` Dr. Werner Fink
1999-01-25 17:56 ` Stephen C. Tweedie
1999-01-25 19:10 ` Andrea Arcangeli
1999-01-25 20:49 ` Dr. Werner Fink
1999-01-25 20:56 ` Linus Torvalds
1999-01-26 12:23 ` Rik van Riel
1999-01-26 15:44 ` Andrea Arcangeli
1999-01-27 14:52 ` Stephen C. Tweedie
1999-01-28 19:12 ` Dr. Werner Fink
1999-01-13 17:55 ` [PATCH] " Stephen C. Tweedie
1999-01-13 18:52 ` Andrea Arcangeli
1999-01-13 22:10 ` Stephen C. Tweedie
1999-01-13 22:30 ` Linus Torvalds
1999-01-11 11:20 ` Pavel Machek
1999-01-11 17:35 ` Stephen C. Tweedie
1999-01-11 14:11 ` Savochkin Andrey Vladimirovich
1999-01-11 17:55 ` Linus Torvalds
1999-01-11 18:37 ` Andrea Arcangeli
1999-01-08 2:56 ` arca-vm-8 [Re: [patch] arca-vm-6, killed kswapd [Re: [patch] new-vm , improvement , [Re: 2.2.0 Bug summary]]] Eric W. Biederman
1999-01-09 0:50 ` David S. Miller
1999-01-09 2:13 ` Stephen C. Tweedie
1999-01-09 2:34 ` Andrea Arcangeli
1999-01-09 9:30 ` Stephen C. Tweedie
1999-01-09 12:11 ` Andrea Arcangeli
1999-01-07 14:11 ` Andrea Arcangeli
1999-01-07 18:19 ` Linus Torvalds
1999-01-07 20:35 ` Andrea Arcangeli
1999-01-07 23:51 ` Linus Torvalds
1999-01-08 0:04 ` Andrea Arcangeli
1999-01-04 22:43 ` [patch] arca-vm-6, killed kswapd [Re: [patch] new-vm improvement , [Re: 2.2.0 Bug summary]] Andrea Arcangeli
1999-01-04 22:29 ` Andrea Arcangeli
1999-01-05 13:33 ` [patch] new-vm improvement [Re: 2.2.0 Bug summary] Ben McCann
1999-01-02 20:04 ` Steve Bergman
1999-01-02 3:03 ` Andrea Arcangeli
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