AIX系统Memory性能评估
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#vmo -o maxperm%=80 -o minperm%=20
Setting minperm% to 20
Setting maxperm% to 80
在AIX 5.2之前的版本请使用/usr/samples/kernel/vmtune命令。
#/usr/samples/kernel/vmtune -p 20–P 80 将min和max的值分别设置为20%和80%。
查看当前的参数设置方法如下:
1)vmo –a 显示当前所有的参数设置
在AIX 5.2之前的版本请使用 # /usr/samples/kernel/vmtune 显示当前所有的参数设置
#vmo -a
cpu_scale_memp = 8
data_stagger_interval = 161
defps = 1
force_relalias_lite = 0
framesets = 2
htabscale = n/a
kernel_heap_psize = 4096
large_page_heap_size = 0
lgpg_regions = 0
lgpg_size = 0
low_ps_handling = 1
lru_file_repage = 1
lru_poll_interval = 10
lrubucket = 131072
maxclient% = 80
maxfree = 1088
maxperm = 4587812
maxperm% = 80
maxpin = 4881650
maxpin% = 80
mbuf_heap_psize = 4096
memory_affinity = 1
memory_frames = 6029312
memplace_data = 2
memplace_mapped_file = 2
memplace_shm_anonymous = 2
memplace_shm_named = 2
memplace_stack = 2
memplace_text = 2
memplace_unmapped_file = 2
mempools = 4
minfree = 960
minperm = 1146952
minperm% = 20
nokilluid = 0
npskill = 49152
npsrpgmax = 393216
npsrpgmin = 294912
npsscrubmax = 393216
npsscrubmin = 294912
npswarn = 196608
num_spec_dataseg = 0
numpsblks = 6291456
page_steal_method = 0
pagecoloring = n/a
pinnable_frames = 5601758
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
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