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Full Discussion: High Paging when lots of free memory AIX 5.3
Operating Systems AIX High Paging when lots of free memory AIX 5.3 Post 302914653 by bibish on Wednesday 27th of August 2014 06:00:30 AM
Old 08-27-2014
High Paging when lots of free memory AIX 5.3
I am new to AIX, I have few AIX 5.3 servers and I could see there are significant difference in paging space utilization on servers even though they are running same applications

below server is working fine which shows 2-5 % paging usage throuh out the day

Code:
cpu_scale_memp = 8
data_stagger_interval = 161
defps = 1
force_relalias_lite = 0
framesets = 2
htabscale = n/a
kernel_heap_psize = 4096
kernel_psize = 16777216
large_page_heap_size = 0
lgpg_regions = 0
lgpg_size = 0
low_ps_handling = 1
lru_file_repage = 0
lru_poll_interval = 10
lrubucket = 131072
maxclient% = 90
maxfree = 1088
maxperm = 7222844
maxperm% = 90
maxpin = 6766853
maxpin% = 80
mbuf_heap_psize = 65536
memory_affinity = 1
memory_frames = 8388608
mempools = 4
minfree = 960
minperm = 240760
minperm% = 3
pinnable_frames = 6739105
psm_timeout_interval = 5000
pta_balance_threshold = n/a
relalias_percentage = 0
rpgclean = 0
rpgcontrol = 2
scrub = 0
scrubclean = 0
soft_min_lgpgs_vmpool = 0
spec_dataseg_int = 512
strict_maxclient = 1
strict_maxperm = 0
v_pinshm = 0
vm_modlist_threshold = -1
vmm_fork_policy = 1
vmm_mpsize_support = 1
wlm_memlimit_nonpg = 1

we have another server in which the paging utilization keep incresing and we have to restart the application everyday to make it normal Smilie

here is the tunable parameters


Code:
cpu_scale_memp = 8
data_stagger_interval = 161
defps = 1
force_relalias_lite = 0
framesets = 2
htabscale = n/a
kernel_heap_psize = 4096
kernel_psize = 16777216
large_page_heap_size = 0
lgpg_regions = 0
lgpg_size = 0
low_ps_handling = 1
lru_file_repage = 0
lru_poll_interval = 10
lrubucket = 131072
maxclient% = 50
maxfree = 1088
maxperm = 4524244
maxperm% = 50
maxpin = 7611036
maxpin% = 80
mbuf_heap_psize = 65536
memory_affinity = 1
memory_frames = 9437184
mempools = 5
minfree = 960
minperm = 1809696
minperm% = 20
pinnable_frames = 7640488
psm_timeout_interval = 20000
pta_balance_threshold = n/a
relalias_percentage = 0
rpgclean = 0
rpgcontrol = 2
scrub = 0
scrubclean = 0
soft_min_lgpgs_vmpool = 0
spec_dataseg_int = 512
strict_maxclient = 1
strict_maxperm = 0
v_pinshm = 0
vm_modlist_threshold = -1
vmm_fork_policy = 1
vmm_mpsize_support = 1
wlm_memlimit_nonpg = 1

let me know if requre any more details to find the issue

Bibi
High Paging when lots of free memory AIX 5.3-cio1png
Last edited by Scrutinizer; 08-27-2014 at 07:32 AM.. Reason: CODE tags
 

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