From: Mohamed K. Ahmed (mkahmed@vsc.teksystems.com)
Date: Fri Jun 20 2003 - 15:41:35 EDT
Hello all,
The system is ES40, Tru64 Unix version 5.1 PK 5, 4 CPUs and 4GB
physical memory
I just have a question, why do I have always teh out put of swapon -s
almost the same?
# swapon -s
Swap partition /dev/disk/dsk0b (default swap):
Allocated space: 665742 pages (5.08GB)
In-use space: 16 pages ( 0%)
Free space: 665726 pages ( 99%) <--------- This one
Total swap allocation:
Allocated space: 665742 pages (5.08GB)
Reserved space: 361349 pages ( 54%)
In-use space: 16 pages ( 0%)
Available space: 304393 pages ( 45%)
#
And some times when there is a lot of developers on the system, the
Reserved swap space coes up to 90% without the 99% of Fre Space
changing?
Do I need to Allocate more swap or tune the vm kernel parameters?
The sysconfig vm and proc parameters follow
# sysconfig -q vm
vm:
ubc_minpercent = 10
ubc_maxpercent = 70
ubc_borrowpercent = 20
vm_max_wrpgio_kluster = 32768
vm_max_rdpgio_kluster = 16384
vm_cowfaults = 4
vm_segmentation = 1
vm_ubcpagesteal = 24
vm_ubcfilemaxdirtypages = 4294967295
vm_ubcdirtypercent = 10
ubc_maxdirtywrites = 5
vm_ubcseqstartpercent = 50
vm_ubcseqpercent = 20
vm_csubmapsize = 1048576
vm_ubcbuffers = 256
vm_syncswapbuffers = 128
vm_asyncswapbuffers = 4
vm_clustermap = 1048576
vm_clustersize = 65536
vm_syswiredpercent = 80
vm_troll_percent = 4
vm_inswappedmin = 1
vm_page_free_target = 2048
vm_page_free_swap = 522
vm_page_free_hardswap = 16384
vm_page_free_min = 20
vm_page_free_reserved = 10
vm_page_free_optimal = 522
vm_swap_eager = 1 <-----------------
swapdevice = /dev/disk/dsk0b
vm_page_prewrite_target = 2048
vm_ffl = 1
ubc_ffl = 1
vm_rss_maxpercent = 100
anon_rss_enforce = 0
vm_rss_block_target = 522
vm_rss_wakeup_target = 522
dump_user_pte_pages = 0
kernel_stack_pages = 0
vm_min_kernel_address = 18446741891866165248
malloc_percpu_cache = 1
vm_aggressive_swap = 0 <---------
new_wire_method = 1
vm_segment_cache_max = 50
gh_chunks = 0
rad_gh_regions[0] = 0
gh_min_seg_size = 8388608
gh_fail_if_no_mem = 1
private_cache_percent = 0
gh_keep_sorted = 0
gh_front_alloc = 1
replicate_user_text = 1
enable_yellow_zone = 0
boost_pager_priority = 0
kstack_free_target = 5
#
# sysconfig -q proc
proc:
max_proc_per_user = 1024
max_threads_per_user = 2048
per_proc_stack_size = 8388608
max_per_proc_stack_size = 33554432
per_proc_data_size = 2684354560 <------------
max_per_proc_data_size = 2684354560 <------------
max_per_proc_address_space = 5453758464 <------------
per_proc_address_space = 5453758464 <------------
executable_stack = 0
autonice = 0
autonice_time = 600
autonice_penalty = 4
open_max_soft = 4096
open_max_hard = 4096
ncallout_alloc_size = 8192
round_robin_switch_rate = 0
sched_min_idle = 0
give_boost = 1
maxusers = 256
num_wait_queues = 256
num_timeout_hash_queues = 256
enhanced_core_name = 0
enhanced_core_max_versions = 16
exec_disable_arg_limit = 0
dump_cores = 1
dump_setugid_cores = 0
#
-Mohamed
This archive was generated by hypermail 2.1.7 : Sat Apr 12 2008 - 10:49:23 EDT