Check current utilization of kernel parameter "kthread" value.

[Mr.AjeetKumar]

Dear gurus,

We are having HP Ux 11.11 server. What is the command to check current utilization of kernel parameter "kthread".

We have tried glance -t but it is not showing kthread.



ProcList CPU Rpt Mem Rpt Disk Rpt NextKeys SlctProc Help Exit
B3692A GlancePlus C.03.72.00 19:13:00 tstpag11 9000/800 Current Avg High
---------------------------------------------------------------------------------------------------------------
CPU Util SSU U | 11% 11% 11%
Disk Util F F | 5% 3% 5%
Mem Util S SU UB B | 88% 88% 88%
Swap Util U UR R | 70% 70% 70%
---------------------------------------------------------------------------------------------------------------
SYSTEM TABLES REPORT Users= 2

System Table Available Used Utilization High(%)
--------------------------------------------------------------------------------
Proc Table (nproc) 4820 288 6 6
File Table (nfile) 63498 8993 14 14
Shared Mem Table (shmmni) 512 16 3 3
Message Table (msgmni) 4096 2 0 0
Semaphore Table (semmni) 4096 32 1 1
File Locks (nflocks) 4096 60 1 1
Pseudo Terminals (npty) 60 0 0 0
Buffer Headers (nbuf) na 686868 na na


Thanks in advance.

[Jeeshan]

check with command

#sysdef

[Dennis Handly]

>We have tried glance -t but it is not showing kthread.

Hmm, that's where I would have looked. Is there a detailed report for tables?
In gpm, there is process screen. I don't know if there is a separate thread screen or threads for a given process.

I assume you could use pstat(2) to count up all of the threads, pstat_getlwp(2).

[Mr.AjeetKumar]

Hi Dennis,

Below is the detail report of kernel parameter

#kmtune
Parameter Current Dyn Planned Module Version
===============================================================================
NSTRBLKSCHED - - 2
NSTREVENT 50 - 50
NSTRPUSH 16 - 16
NSTRSCHED 0 - 0
STRCTLSZ 1024 - 1024
STRMSGSZ 65535 - 65535
acctresume 4 - 4
acctsuspend 2 - 2
aio_listio_max 256 - 256
aio_max_ops 2048 - 2048
aio_physmem_pct 10 - 10
aio_prio_delta_max 20 - 20
allocate_fs_swapmap 0 - 0
alwaysdump 0 - 0
bcvmap_size_factor 2 - 2
bootspinlocks - - 256
bufcache_hash_locks 128 - 128
bufpages 0 - (NBUF*2)
chanq_hash_locks 256 - 256
core_addshmem_read 0 Y 0
core_addshmem_write 0 Y 0
create_fastlinks 0 - 0
dbc_max_pct 10 - 10
dbc_min_pct 5 - 5
default_disk_ir 0 - 0
desfree - - 0
disksort_seconds 0 - 0
dnlc_hash_locks 512 - 512
dontdump 0 - 0
dskless_node - - 0
dst 1 - 1
effective_maxpid - - ((NPROC<=30000)?30000:(NPROC*5/4))
eisa_io_estimate - - 0x300
enable_idds 0 - 0
eqmemsize 15 - 15
executable_stack 0 - 0
fcp_large_config 0 - 0
file_pad - - 10
fs_async 1 - 1
ftable_hash_locks 64 - 64
gvid_no_claim_dev 0 - 0
hdlpreg_hash_locks 128 - 128
hfs_max_ra_blocks 8 - 8
hfs_max_revra_blocks 8 - 8
hfs_ra_per_disk 64 - 64
hfs_revra_per_disk 64 - 64
hp_hfs_mtra_enabled 1 - 1
hpux_aes_override - - 0
initmodmax 50 - 50
io_ports_hash_locks 64 - 64
iomemsize - - 40000
ksi_alloc_max 38560 - 38560
ksi_send_max 32 - 32
lotsfree - - 0
max_async_ports 50 - 50
max_fcp_reqs 512 - 512
max_mem_window 0 - 0
max_thread_proc 2048 - 2048
maxdsiz 0x40000000 - 0x40000000
maxdsiz_64bit 2147483648 - 2147483648
maxfiles 2048 - 2048
maxfiles_lim 2048 Y 2048
maxqueuetime - - 0
maxssiz 134217728 - 134217728
maxssiz_64bit 1073741824 - 1073741824
maxswapchunks 16384 - 16384
maxtsiz 0x4000000 Y 0x4000000
maxtsiz_64bit 0x40000000 Y 0x40000000
maxuprc 4338 Y 4338
maxusers 600 - 600
maxvgs 80 - 80
mesg 1 - 1
minfree - - 0
modstrmax 500 - 500
msgmap 6642 - 6642
msgmax 32768 Y 32768
msgmnb 65535 Y 65535
msgmni 4096 - 4096
msgseg 32767 - 32767
msgssz 128 - 128
msgtql 6640 - 6640
nbuf 0 - 0
ncallout 8467 - 8467
ncdnode 150 - 150
nclist 9700 - 9700
ncsize 35480 - 35480
ndilbuffers 30 - 30
netisr_priority - - -1
netmemmax - - 0
nfile 63488 - 63488
nflocks 4096 - 4096
nhtbl_scale 0 - 0
ninode 34816 - 34816
nkthread 8451 - 8451
nni - - 2
no_lvm_disks 0 - 0
nproc 4820 - 4820
npty 60 - 60
nstrpty 60 - 60
nstrtel 600 - 600
nswapdev 10 - 10
nswapfs 10 - 10
nsysmap 9640 - 9640
nsysmap64 9640 - 9640
o_sync_is_o_dsync 0 - 0
page_text_to_local - - 0
pfdat_hash_locks 128 - 128
public_shlibs 1 - 1
region_hash_locks 128 - 128
remote_nfs_swap 0 - 0
rtsched_numpri 32 - 32
scroll_lines 100 - 100
scsi_max_qdepth 8 Y 8
scsi_maxphys 1048576 - 1048576
select_enh 0 Y 0
sema 1 - 1
semaem 16384 - 16384
semmap 4098 - 4098
semmni 4096 - 4096
semmns 32767 - 32767
semmnu 4816 - 4816
semmsl 2048 Y 2048
semume 64 - 64
semvmx 32768 - 32768
sendfile_max 0 - 0
shmem 1 - 1
shmmax 24576000000 Y 24576000000
shmmni 512 - 512
shmseg 120 Y 120
st_ats_enabled 0 - 0
st_fail_overruns 0 - 0
st_large_recs 0 - 0
st_san_safe 0 - 0
streampipes 1 - 1
swapmem_on 1 - 1
swchunk 8192 - 8192
sysv_hash_locks 128 - 128
tcphashsz 0 - 0
timeslice 10 - (100/10)
timezone 420 - 420
unlockable_mem 0 - 0
vas_hash_locks 128 - 128
vnode_cd_hash_locks 128 - 128
vnode_hash_locks 128 - 128
vps_ceiling 64 - 64
vps_chatr_ceiling 1048576 - 1048576
vps_pagesize 4 - 4
vx_fancyra_enable 0 - 0
vx_maxlink 32767 - 32767
vx_ncsize 1024 - 1024
vx_ninode 0 - 0
vxfs_max_ra_kbytes 1024 - 1024
vxfs_ra_per_disk 1024 - 1024
#

What is command to see current utilazation of kthread.

[VK2COT]

Hello,

Did you look at nkthread kernel parameter?
That is the one defining number of threads
of the server.

Depending which version on platform of HP-UX you run:

kmtune -q nkthread
kctune -v nkthread

Note that in versions HP-UX 11.23 and 11.31,
there are constraints for nkthread.

In HP-UX 11.11, nkthread is based on a formula with nproc parameter.

Cheers,

VK2COT

[Dennis Handly]

>Below is the detail report of kernel parameter

I meant details in glance -t.
This just gives the max: nkthread 8451

[Mr.AjeetKumar]

glance -t output

B3692A GlancePlus C.03.72.00 22:49:19 tstpag11 9000/800 Current Avg High
------------------------------------------------------------------------------------------------------------------------------
CPU Util S SU U | 10% 10% 13%
Disk Util F F | 6% 5% 7%
Mem Util S SU UB B | 88% 88% 88%
Swap Util U UR R | 70% 70% 70%
------------------------------------------------------------------------------------------------------------------------------
SYSTEM TABLES REPORT Users= 2

System Table Available Used Utilization High(%)
--------------------------------------------------------------------------------
Proc Table (nproc) 4820 288 6 6
File Table (nfile) 63498 9242 15 15
Shared Mem Table (shmmni) 512 16 3 3
Message Table (msgmni) 4096 2 0 0
Semaphore Table (semmni) 4096 32 1 1
File Locks (nflocks) 4096 60 1 1
Pseudo Terminals (npty) 60 0 0 0
Buffer Headers (nbuf) na 686868 na na























Page 1 of 2
ProcList CPU Rpt Mem Rpt Disk Rpt

[Slawomir Gora]

Hello,

you can read current value of nkthread useing this procedure.


1. You may need to preprocess the kernel for debugging first:
# /usr/contrib/bin/q4pxdb /stand/vmunix

2. Now start Q4 using the running kernel /stand/vmunix and the device file to access the memory /dev/mem
# /usr/contrib/bin/q4 /stand/vmunix /dev/mem

q4> nkthread
07020 3600 0xe10

q4> load struct kthread from kthread_list next kt_factp max nkthread
loaded 367 struct kthreads as a linked list (stopped by null pointer)

--- this means 367 out of 3600 (=nkthread) threads are currently existing.

[Dennis Handly]

>glance -t output ... Page 1 of 2

You need to hit a space to get the next page. Unfortunately it doesn't give kthread.

See my reply to this thread how to get it in gpm:
http://forums.itrc.hp.com/service/forums/questionanswer.do?threadId=1296550

[Suraj K Sankari]

Hi,

You can used any of this

sysdef
kctune
kmtune
kcweb

Suraj