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11-30-2007 08:53 PM
11-30-2007 08:53 PM
Memory Usage is Very High
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12-01-2007 01:10 AM
12-01-2007 01:10 AM
Re: Memory Usage is Very High
db_buffers define the amount of buffers your db will use and db_block_size gives you the size of each buffer.
you will get the total size by multiplying these two params.
There are other parameters in oracle, but I dun remember them.
Check what is the size of SGA for your oracle instance.
Sri
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12-02-2007 12:10 PM
12-02-2007 12:10 PM
Re: Memory Usage is Very High
adedd13n:root [/root] kmtune|grep -i db
dbc_max_pct 10 - 10
dbc_min_pct 5 - 5
Also i would recommend to run a kmeminfo which will give a detailed descript of who is using how much. remember the exe differs for rp and rx series.
Also "ipcs -bma|grep oracle" can information about the reserved MEM for each databases on the system.
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12-02-2007 12:23 PM
12-02-2007 12:23 PM
Re: Memory Usage is Very High
ipcs -bma |sort -n +9 |tail -20
this tells the 20 biggest mem reservarions
please alsow post:
swapinfo -a
kmtune |grep swap
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12-09-2007 09:49 PM
12-09-2007 09:49 PM
Re: Memory Usage is Very High
Sorry I was on leave due to my mom's ill health. So I could not post. Here is the output.
# ipcs -bma |sort -n +9 |tail -20
Shared Memory:
T ID KEY MODE OWNER GROUP CREATOR CGROUP NATTCH SEGSZ CPID LPID ATIME DTIME CTIME
IPC status from /dev/kmem as of Mon Dec 10 10:50:33 2007
m 0 0x411c2934 --rw-rw-rw- root root root root 0 348 609 609 13:27:22 13:27:22 13:27:16
m 30723 0x5e1007f0 --rw------- root root root root 1 512 1989 1989 13:29:13 no-entry 13:29:13
m 2 0x41202bbd --rw-rw-rw- root root root root 1 8192 609 621 13:27:18 13:27:16 13:27:16
m 1 0x4e0c0002 --rw-rw-rw- root root root root 1 61760 609 609 13:27:18 13:27:22 13:27:16
m 142343 0x6a501997 --rw-rw-rw- oraprod dba oraprod dba 2 524304 6300 6094 9:44:46 no-entry 9:44:46
m 143878 0x6a501996 --rw-rw-rw- oraprod dba oraprod dba 2 524304 6299 6088 9:44:46 no-entry 9:44:46
m 143880 0x6a501998 --rw-rw-rw- oraprod dba oraprod dba 2 524304 6301 6092 9:44:46 no-entry 9:44:46
m 274949 0x6a501995 --rw-rw-rw- oraprod dba oraprod dba 2 524304 6298 6090 9:44:46 no-entry 9:44:46
m 35844 0xb0c55bc4 --rw-r----- oraprod dba oraprod dba 481 1487904768 9334 11629 10:50:29 10:50:29 22:02:20
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12-09-2007 09:50 PM
12-09-2007 09:50 PM
Re: Memory Usage is Very High
Kb Kb Kb PCT START/ Kb
TYPE AVAIL USED FREE USED LIMIT RESERVE PRI NAME
dev 16908288 1655276 15253012 10% 0 - 1 /dev/vg00/lvol2
reserve - 7777200 -7777200
memory 12944560 9383536 3561024 72%
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12-09-2007 09:50 PM
12-09-2007 09:50 PM
Re: Memory Usage is Very High
allocate_fs_swapmap 0 - 0
dmp_swapdev_is_vol 0 - 0
maxswapchunks 16384 - 16384
nswapdev 10 - 10
nswapfs 10 - 10
remote_nfs_swap 0 - 0
swapmem_on 1 - 1