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Memory runs out fast with 2.6.0-test2 (and test1)

DISCUSSION Marino Fernandez 3 participants 5 messages Jul 28, 2003

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Marino Fernandez

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#0 lore raw

Everything works OK in my system... my only gripe is that I run out of memory quickly. I have a Fujitsu C-7651 Lifebook laptop, Pentium III, 512 Mb Ram, 300 Mb swap.

When I start up (with KDE) I've alredy used 300 megs of ram. The if I open mozilla, and view some phostos with kuickshow, thats it, I use 700 Megs of physical and virtual memory...

Looking at ps aux shows that 5% goes to each of the 5 mozilla processes, 3% for this, 2% for that... It is all accounted for in different ways. It is just that running under 2.4.21, with the same programs I very rarely use my swap memory, let alone use all my physical and swap memory.

PS
I had the same issue with test1.

PPS
Could it be that I am doing something stupid when I configure the kernel... This is what I have in my config file.. may be config_nohighmem?:

# Processor type and features
#
CONFIG_X86_PC=y
CONFIG_MPENTIUMIII=y
CONFIG_X86_CMPXCHG=y
CONFIG_X86_XADD=y
CONFIG_X86_L1_CACHE_SHIFT=5
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
CONFIG_X86_WP_WORKS_OK=y
CONFIG_X86_INVLPG=y
CONFIG_X86_BSWAP=y
CONFIG_X86_POPAD_OK=y
CONFIG_X86_GOOD_APIC=y
CONFIG_X86_INTEL_USERCOPY=y
CONFIG_X86_USE_PPRO_CHECKSUM=y
CONFIG_X86_UP_APIC=y
CONFIG_X86_UP_IOAPIC=y
CONFIG_X86_LOCAL_APIC=y
CONFIG_X86_IO_APIC=y
CONFIG_X86_TSC=y
CONFIG_X86_MCE=y
CONFIG_MICROCODE=m
CONFIG_X86_MSR=m
CONFIG_X86_CPUID=m
CONFIG_NOHIGHMEM=y
CONFIG_MATH_EMULATION=y
CONFIG_MTRR=y

#1 lore raw
Quoted 3 lines · Marino Fernandez

Everything works OK in my system... my only gripe is that I run out of memory
quickly.

Please monitor /proc/meminfo and /proc/slabinfo, see if you can work out where the memory has gone and post the results.

What filesystems are you using there?

author
#2 lore raw
Quoted 8 lines · Andrew Morton
Quoted 2 lines · Marino Fernandez

Everything works OK in my system... my only gripe is that I run out of memory quickly.

Please monitor /proc/meminfo and /proc/slabinfo, see if you can work out where the memory has gone and post the results.

What filesystems are you using there?

ext3

The rest of the info is attached

This is from my config file:
# File systems
#
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
CONFIG_EXT3_FS_XATTR=y
CONFIG_JBD=y
CONFIG_JBD_DEBUG=y
CONFIG_FS_MBCACHE=y
CONFIG_REISERFS_FS=m
CONFIG_JFS_FS=m
CONFIG_MINIX_FS=m
CONFIG_ROMFS_FS=m
CONFIG_QUOTA=y
CONFIG_QUOTACTL=y

#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
CONFIG_ZISOFS_FS=y
CONFIG_UDF_FS=m

#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=y
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
CONFIG_NTFS_FS=m

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_DEVPTS_FS=y
CONFIG_TMPFS=y
CONFIG_RAMFS=y

#
# Miscellaneous filesystems
#
CONFIG_ADFS_FS=m
CONFIG_ADFS_FS_RW=y
CONFIG_AFFS_FS=m
CONFIG_HFS_FS=m
CONFIG_BEFS_FS=m
CONFIG_BFS_FS=m
CONFIG_EFS_FS=m
CONFIG_CRAMFS=m
CONFIG_VXFS_FS=m
CONFIG_HPFS_FS=m
CONFIG_QNX4FS_FS=m
CONFIG_QNX4FS_RW=y
CONFIG_SYSV_FS=m
CONFIG_UFS_FS=m
CONFIG_UFS_FS_WRITE=y

Marino@lifebook:~$ cat /proc/meminfo
MemTotal:       507012 kB
MemFree:         15176 kB
Buffers:         21988 kB
Cached:         242712 kB
SwapCached:          0 kB
Active:         314124 kB
Inactive:        56116 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:       507012 kB
LowFree:         15176 kB
SwapTotal:      305196 kB
SwapFree:       305196 kB
Dirty:            1936 kB
Writeback:           0 kB
Mapped:         135904 kB
Slab:            23976 kB
Committed_AS:   144028 kB
PageTables:       2824 kB
VmallocTotal:   524216 kB
VmallocUsed:     15116 kB
VmallocChunk:   509044 kB
Marino@lifebook:~$ cat /proc/slabinfo
slabinfo - version: 2.0
# name            <active_objs> <num_objs> <objsize> <objperslab> <pagesperslab> : tunables <batchcount> <limit> <sharedfactor> : slabdata <active_slabs> <num_slabs> <sharedavail>
secpath6_cache         0      0    128   30    1 : tunables  120   60    0 : slabdata      0      0      0
fib6_nodes             5    113     32  113    1 : tunables  120   60    0 : slabdata      1      1      0
ip6_dst_cache          5     17    224   17    1 : tunables  120   60    0 : slabdata      1      1      0
ndisc_cache            1     24    160   24    1 : tunables  120   60    0 : slabdata      1      1      0
raw6_sock              0      0    576    7    1 : tunables   54   27    0 : slabdata      0      0      0
udp6_sock              0      0    576    7    1 : tunables   54   27    0 : slabdata      0      0      0
tcp6_sock              7     12    992    4    1 : tunables   54   27    0 : slabdata      3      3      0
ip_conntrack          11     12    320   12    1 : tunables   54   27    0 : slabdata      1      1      0
ip_fib_hash            9    202     16  202    1 : tunables  120   60    0 : slabdata      1      1      0
uhci_urb_priv          0      0     60   63    1 : tunables  120   60    0 : slabdata      0      0      0
ntfs_big_inode_cache    585    588    512    7    1 : tunables   54   27    0 : slabdata     84     84      0
ntfs_inode_cache       3     20    192   20    1 : tunables  120   60    0 : slabdata      1      1      0
ntfs_name_cache        0      0    512    8    1 : tunables   54   27    0 : slabdata      0      0      0
ntfs_attr_ctx_cache      0      0     32  113    1 : tunables  120   60    0 : slabdata      0      0      0
clip_arp_cache         0      0    160   24    1 : tunables  120   60    0 : slabdata      0      0      0
unix_sock            205    210    384   10    1 : tunables   54   27    0 : slabdata     21     21      0
tcp_tw_bucket          0      0    128   30    1 : tunables  120   60    0 : slabdata      0      0      0
tcp_bind_bucket       11    202     16  202    1 : tunables  120   60    0 : slabdata      1      1      0
tcp_open_request       0      0     96   40    1 : tunables  120   60    0 : slabdata      0      0      0
inet_peer_cache        0      0     64   59    1 : tunables  120   60    0 : slabdata      0      0      0
secpath4_cache         0      0    128   30    1 : tunables  120   60    0 : slabdata      0      0      0
xfrm_dst_cache         0      0    256   15    1 : tunables  120   60    0 : slabdata      0      0      0
ip_dst_cache          13     15    256   15    1 : tunables  120   60    0 : slabdata      1      1      0
arp_cache              2     24    160   24    1 : tunables  120   60    0 : slabdata      1      1      0
raw4_sock              0      0    448    9    1 : tunables   54   27    0 : slabdata      0      0      0
udp_sock               5      9    448    9    1 : tunables   54   27    0 : slabdata      1      1      0
tcp_sock              22     24    896    4    1 : tunables   54   27    0 : slabdata      6      6      0
flow_cache             0      0     96   40    1 : tunables  120   60    0 : slabdata      0      0      0
scsi_cmd_cache         1     12    320   12    1 : tunables   54   27    0 : slabdata      1      1      0
isofs_inode_cache      0      0    384   10    1 : tunables   54   27    0 : slabdata      0      0      0
fat_inode_cache      497    504    416    9    1 : tunables   54   27    0 : slabdata     56     56      0
ext2_inode_cache       0      0    480    8    1 : tunables   54   27    0 : slabdata      0      0      0
journal_handle         2    126     28  126    1 : tunables  120   60    0 : slabdata      1      1      0
journal_head         306    858     48   78    1 : tunables  120   60    0 : slabdata     11     11      0
revoke_table          10    253     12  253    1 : tunables  120   60    0 : slabdata      1      1      0
revoke_record          0      0     16  202    1 : tunables  120   60    0 : slabdata      0      0      0
ext3_inode_cache   14907  15050    512    7    1 : tunables   54   27    0 : slabdata   2150   2150      0
ext3_xattr             0      0     44   84    1 : tunables  120   60    0 : slabdata      0      0      0
dquot                  0      0    128   30    1 : tunables  120   60    0 : slabdata      0      0      0
eventpoll_pwq          0      0     36  101    1 : tunables  120   60    0 : slabdata      0      0      0
eventpoll_epi          0      0     96   40    1 : tunables  120   60    0 : slabdata      0      0      0
kioctx                 0      0    192   20    1 : tunables  120   60    0 : slabdata      0      0      0
kiocb                  0      0    160   24    1 : tunables  120   60    0 : slabdata      0      0      0
dnotify_cache          0      0     20  169    1 : tunables  120   60    0 : slabdata      0      0      0
file_lock_cache      107    120     96   40    1 : tunables  120   60    0 : slabdata      3      3      0
fasync_cache           2    202     16  202    1 : tunables  120   60    0 : slabdata      1      1      0
shmem_inode_cache      3      9    448    9    1 : tunables   54   27    0 : slabdata      1      1      0
idr_layer_cache        0      0    136   28    1 : tunables  120   60    0 : slabdata      0      0      0
posix_timers_cache      0      0     88   44    1 : tunables  120   60    0 : slabdata      0      0      0
uid_cache              3    113     32  113    1 : tunables  120   60    0 : slabdata      1      1      0
sgpool-MAX_PHYS_SEGMENTS     32     32   2048    2    1 : tunables   24   12    0 : slabdata     16     16      0
sgpool-64             32     32   1024    4    1 : tunables   54   27    0 : slabdata      8      8      0
sgpool-32             32     32    512    8    1 : tunables   54   27    0 : slabdata      4      4      0
sgpool-16             32     45    256   15    1 : tunables  120   60    0 : slabdata      3      3      0
sgpool-8              32     60    128   30    1 : tunables  120   60    0 : slabdata      2      2      0
deadline_drq           0      0     48   78    1 : tunables  120   60    0 : slabdata      0      0      0
as_arq                78    189     60   63    1 : tunables  120   60    0 : slabdata      2      3      0
blkdev_requests       82    130    152   26    1 : tunables  120   60    0 : slabdata      5      5      0
biovec-BIO_MAX_PAGES    256    260   3072    5    4 : tunables   24   12    0 : slabdata     52     52      0
biovec-128           256    260   1536    5    2 : tunables   24   12    0 : slabdata     52     52      0
biovec-64            256    260    768    5    1 : tunables   54   27    0 : slabdata     52     52      0
biovec-16            256    260    192   20    1 : tunables  120   60    0 : slabdata     13     13      0
biovec-4             256    295     64   59    1 : tunables  120   60    0 : slabdata      5      5      0
biovec-1             342    606     16  202    1 : tunables  120   60    0 : slabdata      3      3      0
bio                  291    531     64   59    1 : tunables  120   60    0 : slabdata      9      9      0
sock_inode_cache     241    250    384   10    1 : tunables   54   27    0 : slabdata     25     25      0
skbuff_head_cache    120    120    192   20    1 : tunables  120   60    0 : slabdata      6      6      0
sock                   4     11    352   11    1 : tunables   54   27    0 : slabdata      1      1      0
proc_inode_cache     267    390    384   10    1 : tunables   54   27    0 : slabdata     39     39      0
sigqueue              27     27    144   27    1 : tunables  120   60    0 : slabdata      1      1      0
radix_tree_node     7174   7515    260   15    1 : tunables   54   27    0 : slabdata    501    501      0
bdev_cache            12     40     96   40    1 : tunables  120   60    0 : slabdata      1      1      0
mnt_cache             26     59     64   59    1 : tunables  120   60    0 : slabdata      1      1      0
inode_cache         1144   1144    352   11    1 : tunables   54   27    0 : slabdata    104    104      0
dentry_cache       21120  21120    160   24    1 : tunables  120   60    0 : slabdata    880    880      0
filp                1248   1248    160   24    1 : tunables  120   60    0 : slabdata     52     52      0
names_cache            7      7   4096    1    1 : tunables   24   12    0 : slabdata      7      7      0
buffer_head        53766  56784     48   78    1 : tunables  120   60    0 : slabdata    728    728      0
mm_struct             70     70    384   10    1 : tunables   54   27    0 : slabdata      7      7      0
vm_area_struct      3658   3658     64   59    1 : tunables  120   60    0 : slabdata     62     62      0
fs_cache              74    118     64   59    1 : tunables  120   60    0 : slabdata      2      2      0
files_cache           63     63    416    9    1 : tunables   54   27    0 : slabdata      7      7      0
signal_cache          96    118     64   59    1 : tunables  120   60    0 : slabdata      2      2      0
sighand_cache         78     78   1312    3    1 : tunables   24   12    0 : slabdata     26     26      0
task_struct           85     85   1568    5    2 : tunables   24   12    0 : slabdata     17     17      0
pte_chain          28473  28702     32  113    1 : tunables  120   60    0 : slabdata    254    254      0
size-131072(DMA)       0      0 131072    1   32 : tunables    8    4    0 : slabdata      0      0      0
size-131072            0      0 131072    1   32 : tunables    8    4    0 : slabdata      0      0      0
size-65536(DMA)        0      0  65536    1   16 : tunables    8    4    0 : slabdata      0      0      0
size-65536             0      0  65536    1   16 : tunables    8    4    0 : slabdata      0      0      0
size-32768(DMA)        0      0  32768    1    8 : tunables    8    4    0 : slabdata      0      0      0
size-32768             2      2  32768    1    8 : tunables    8    4    0 : slabdata      2      2      0
size-16384(DMA)        0      0  16384    1    4 : tunables    8    4    0 : slabdata      0      0      0
size-16384             7      7  16384    1    4 : tunables    8    4    0 : slabdata      7      7      0
size-8192(DMA)         0      0   8192    1    2 : tunables    8    4    0 : slabdata      0      0      0
size-8192             87     87   8192    1    2 : tunables    8    4    0 : slabdata     87     87      0
size-4096(DMA)         0      0   4096    1    1 : tunables   24   12    0 : slabdata      0      0      0
size-4096             94     94   4096    1    1 : tunables   24   12    0 : slabdata     94     94      0
size-2048(DMA)         0      0   2048    2    1 : tunables   24   12    0 : slabdata      0      0      0
size-2048             28     28   2048    2    1 : tunables   24   12    0 : slabdata     14     14      0
size-1024(DMA)         0      0   1024    4    1 : tunables   54   27    0 : slabdata      0      0      0
size-1024             80     80   1024    4    1 : tunables   54   27    0 : slabdata     20     20      0
size-512(DMA)          0      0    512    8    1 : tunables   54   27    0 : slabdata      0      0      0
size-512             209    224    512    8    1 : tunables   54   27    0 : slabdata     28     28      0
size-256(DMA)          0      0    256   15    1 : tunables  120   60    0 : slabdata      0      0      0
size-256             102    150    256   15    1 : tunables  120   60    0 : slabdata     10     10      0
size-192(DMA)          0      0    192   20    1 : tunables  120   60    0 : slabdata      0      0      0
size-192             100    180    192   20    1 : tunables  120   60    0 : slabdata      9      9      0
size-128(DMA)          0      0    128   30    1 : tunables  120   60    0 : slabdata      0      0      0
size-128             175    210    128   30    1 : tunables  120   60    0 : slabdata      7      7      0
size-96(DMA)           0      0     96   40    1 : tunables  120   60    0 : slabdata      0      0      0
size-96              806    840     96   40    1 : tunables  120   60    0 : slabdata     21     21      0
size-64(DMA)           0      0     64   59    1 : tunables  120   60    0 : slabdata      0      0      0
size-64             1946   2006     64   59    1 : tunables  120   60    0 : slabdata     34     34      0
size-32(DMA)           0      0     32  113    1 : tunables  120   60    0 : slabdata      0      0      0
size-32             2659   2712     32  113    1 : tunables  120   60    0 : slabdata     24     24      0
kmem_cache           128    128    120   32    1 : tunables  120   60    0 : slabdata      4      4      0
#3 lore raw
Quoted 6 lines · Marino Fernandez
Quoted 4 lines · Andrew Morton
Quoted 2 lines · Marino Fernandez

Everything works OK in my system... my only gripe is that I run out of memory quickly.

Quoted 8 lines
Quoted 4 lines

Please monitor /proc/meminfo and /proc/slabinfo, see if you can work out where the memory has gone and post the results.

What filesystems are you using there?

ext3

The rest of the info is attached

I see no problem. There are no large unreclaimable caches, there has been no swapout.

Either you need to describe the problem a little more completely, or the info which you sent was not gathered at the correct time.

#4 lore raw
In reply to Andrew Morton

BTW, there is specific case. after umount all leaked buffer_heads get removed from accounting. so, you won't find them in /proc/meminfo and /proc/slabinfo.

Quoted 1 line
Quoted 1 line
Quoted 1 line
Quoted 1 line
Quoted 1 line

Andrew Morton (AM) writes:

AM> Please monitor /proc/meminfo and /proc/slabinfo, see if you can work out AM> where the memory has gone and post the results.