- Community Home
- >
- Servers and Operating Systems
- >
- Operating Systems
- >
- Operating System - HP-UX
- >
- Re: Understanding top and swapinfo command HP-UX
Categories
Company
Local Language
Forums
Discussions
Forums
- Data Protection and Retention
- Entry Storage Systems
- Legacy
- Midrange and Enterprise Storage
- Storage Networking
- HPE Nimble Storage
Discussions
Discussions
Discussions
Forums
Forums
Discussions
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
- BladeSystem Infrastructure and Application Solutions
- Appliance Servers
- Alpha Servers
- BackOffice Products
- Internet Products
- HPE 9000 and HPE e3000 Servers
- Networking
- Netservers
- Secure OS Software for Linux
- Server Management (Insight Manager 7)
- Windows Server 2003
- Operating System - Tru64 Unix
- ProLiant Deployment and Provisioning
- Linux-Based Community / Regional
- Microsoft System Center Integration
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Community
Resources
Forums
Blogs
- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО07-17-2011 11:10 PM
тАО07-17-2011 11:10 PM
Understanding top and swapinfo command HP-UX
Hi!I am new to HP-UX having used Linux for several years.When I want to check server performance,I use the top and swapinfo command.In Linux,the results of top were quite easy to understand as it would clearly state the amount of free and used physical and virtual memory.For HP-UX,I am not so sure.If I check the top result below
$ top
System: aw1bdvrs Mon Jul 18 08:03:51 2011Load averages: 0.04, 0.05, 0.06516 processes: 472 sleeping, 44 runningCpu states:CPU LOAD USER NICE SYS IDLE BLOCK SWAIT INTR SSYS 0 0.03 7.5% 0.0% 1.0% 91.5% 0.0% 0.0% 0.0% 0.0% 2 0.04 1.0% 0.0% 3.2% 95.8% 0.0% 0.0% 0.0% 0.0% 4 0.05 7.1% 0.0% 4.6% 88.3% 0.0% 0.0% 0.0% 0.0% 6 0.02 0.0% 0.0% 0.0% 100.0% 0.0% 0.0% 0.0% 0.0% 8 0.07 2.0% 0.0% 2.8% 95.2% 0.0% 0.0% 0.0% 0.0%10 0.04 2.8% 0.0% 1.0% 96.2% 0.0% 0.0% 0.0% 0.0%12 0.04 4.8% 0.0% 1.4% 93.8% 0.0% 0.0% 0.0% 0.0%14 0.07 6.3% 0.0% 1.0% 92.7% 0.0% 0.0% 0.0% 0.0%--- ---- ----- ----- ----- ----- ----- ----- ----- -----avg 0.04 4.0% 0.0% 1.8% 94.2% 0.0% 0.0% 0.0% 0.0%
System Page Size: 4KbytesMemory: 13282568K (1729912K) real, 57718252K (5759048K) virtual, 23845192K free Page# 1/104
CPU TTY PID USERNAME PRI NI SIZE RES STATE TIME %WCPU %CPU COMMAND 2 ? 27474 oracle 154 20 52451M 8192K sleep 1:20 9.71 9.69 ora_j001_pr14 ? 27495 oracle 154 20 52453M 8636K sleep 1:19 8.17 8.16 ora_j004_pr 4 ? 27482 oracle 154 20 52457M 9020K sleep 1:18 6.90 6.89 ora_j002_p74
What does
Memory: 13282568K (1729912K) real mean-the value 13282568K and 1729912K represents what part s of physical memory?
Also
57718252K (5759048K) virtual repsesents what values
And does
23845192K free represent the amount of free physical memory?
I would like to know from the above figures,which values represents value of free and used physical and virtual memory?
Also,please explain to me the various values of swapinfo shown below
$ swapinfo Kb Kb Kb PCT START/ KbTYPE AVAIL USED FREE USED LIMIT RESERVE PRI NAMEdev 8388608 7964 8380644 0% 0 - 1 /dev/vg00/lvol2dev 16777216 8196 16769020 0% 0 - 1 /dev/vg00/swapdev 25165824 7824 25158000 0% 0 - 1 /dev/vg00/swap2dev 20971520 7324 20964196 0% 0 - 1 /dev/vg00/swap1reserve - 57816448 -57816448memory 63661264 10465664 53195600 16%
Thanks.
- Tags:
- swapinfo
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО07-18-2011 02:29 AM - edited тАО07-18-2011 02:29 AM
тАО07-18-2011 02:29 AM - edited тАО07-18-2011 02:29 AM
Re: Understanding top and swapinfo command HP-UX
sorted:
$ swapinfo Kb Kb Kb PCT START/ Kb
TYPE AVAIL USED FREE USED LIMIT RESERVE PRI NAME
dev 8388608 7964 8380644 0% 0 - 1 /dev/vg00/lvol2
dev 16777216 8196 16769020 0% 0 - 1 /dev/vg00/swap
dev 25165824 7824 25158000 0% 0 - 1 /dev/vg00/swap2
dev 20971520 7324 20964196 0% 0 - 1 /dev/vg00/swap1
reserve - 57816448 -57816448
memory 63661264 10465664 53195600 16%
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО07-18-2011 02:55 AM - edited тАО07-18-2011 02:56 AM
тАО07-18-2011 02:55 AM - edited тАО07-18-2011 02:56 AM
Re: Understanding top and swapinfo command HP-UX
dev is your swap space at disks.
(Why is it all set to pri 1?)
memory is about 70% of your physikal RAM.
(With the option -m you get your space in Mb)
>I would like to know ...
You can use man pages for a first information ('man swapinfo').
Also with a search in this forum I'm sure you'll find very detailed informations about the content.
(More detailed than I can give ...)
V.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО07-18-2011 07:29 AM
тАО07-18-2011 07:29 AM
Re: Understanding top and swapinfo command HP-UX
Please give swapinfo -atm output.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО07-18-2011 09:48 AM
тАО07-18-2011 09:48 AM
Re: Understanding top and swapinfo command HP-UX
Do you have a particular problem you are trying to solve?
As mentioned, look at the "swapinfo -tam" output, in particular the "total" line.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО07-24-2011 04:55 PM - edited тАО07-24-2011 10:56 PM
тАО07-24-2011 04:55 PM - edited тАО07-24-2011 10:56 PM
Re: Understanding top and swapinfo command HP-UX
Things I might want to suggest to this thread around looking at memory usage on HP-UX:
1) "Memory" in the swapinfo line is "pseudo swap", which is confusing at best. It's set by the kernel and may be anything from 0 up to 1:1 of phy memory
2) Top is not the best to use for analysing memory usage. Get hold of the internal kmeminfo tool, and play with the options (e.g. "-user"), or optionally glance:
Physical memory usage summary (in page/byte/percent):
Physical memory = 2092180 8.0g 100%
Free memory = 672090 2.6g 32%
User processes = 743712 2.8g 36% details with -user
System = 657716 2.5g 31%
Kernel = 490342 1.9g 23% kernel text and data
Dynamic Arenas = 309457 1.2g 15% details with -arena
vx_global_kmcac = 129804 507.0m 6%
vx_buffer_kmcac = 41824 163.4m 2%
spinlock = 30678 119.8m 1%
vx_rwsleeplock_ = 18907 73.9m 1%
vx_ihsm_kmcache = 9470 37.0m 0%
Other arenas = 78774 307.7m 4% details with -arena
Super page pool = 19770 77.2m 1% details with -kas
Static Tables = 115488 451.1m 6% details with -static
pfdat = 49035 191.5m 2%
nbuf = 24480 95.6m 1% bufcache headers
vhpt = 16384 64.0m 1%
text = 8176 31.9m 0% vmunix text section
inode = 4896 19.1m 0%
Other tables = 12516 48.9m 1% details with -static
Buffer cache = 167374 653.8m 8% details with -bufcache
UFC file mrg = 0 0.0 0%
3) Memory values in TOP tends to be confusing at best, make sure understand the differnce between virtual and real (SIZE/RES) . Second, Top reports on user process only, so looking at my example from kmeminfo above, I"ve got about 2.8Gb in use and 2.6Gb free. The virtual memory usage is higher as it includes e.g. reserved memory in swap.
TOP
Memory: 3047984K (2581944K) real, 5228612K (4562188K) virtual, 2718452K free
I hope this may clarify as this is confusing at best in my view.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО07-24-2011 08:27 PM - edited тАО10-19-2013 08:03 PM
тАО07-24-2011 08:27 PM - edited тАО10-19-2013 08:03 PM
Re: Understanding top and swapinfo command HP-UX
>1) "memory" in the swapinfo line is "pseudo memory", which is confusing at best. It's set by the kernel and may be anything from 0 up to 1:1 of phy memory
That's pseudo swap and hopefully not 0% of memory. ;-)
>2) top is not the best to use for analyzing memory usage.
Right.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО07-24-2011 10:57 PM
тАО07-24-2011 10:57 PM