11-11-2010
The only reason your box is still alive is that the SGA is not pinned into memory if it is so huge. If you even try to do that the box will no doubt crash after some uptime as the kernel is pinning memory too and you cannot exceed the overall possible value of pinned memory that is about 85%. With sufficient tuning and sufficient memory, AIX is not going to page computational memory as long as the avm value doesnt exceed 97% of total physical memory. Btw I mentioned it before - your minperm is 10% - even by default it is on AIX 6.1 3% and with your memory consumption on the box you should do the same even for AIX 5.3.
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hi,
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Hi,
I am running an oracle db 9.2.0.5.0 on ibm p5 550 aix 5.3 with 10g ram, 10G swap space 3 database instances each SGA about 500Meg.
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3. AIX
good morning
what is the better solution to examen a P570 ?
because i use topas and nmon, and the results are totally different !!!
with nmon, i have 80% free cpu, and with nmon, i have 90% of used cpu !!!!!!
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4. AIX
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5. Solaris
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Hello,
Please help me with a script with which I can check long running processes on the database server and the os is AIX.
Best regards,
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8. AIX
Hello,
All the commands on AIX are running very slow.
Below is few stats but I didn't find any issue in cpu or memory reosurces
vmstat
System configuration: lcpu=4 mem=6144MB ent=1.00
kthr memory page faults cpu
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cr_read(3) Library Functions Manual cr_read(3)
NAME
cr_read - read from crash dump
SYNOPSIS
DESCRIPTION
The function attempts to read the memory area defined by mem_page and num_pages into the buffer pointed to by buf from the crash dump
opened using crash_cb.
The starts at the position in the crash dump associated with the physical memory offset given by mem_page. If the physical memory page
mem_page does not exist in the crash dump, sets *num_pages to 0 and returns 0.
No data transfer will occur past a page of memory that does not exist in the crash dump. If the starting position, mem_page, plus the read
length, *num_pages, goes past an area of memory that does not exist in the crash dump, sets *num_pages to the number of consecutive pages
(starting at mem_page) actually read.
RETURN VALUE
Returns zero for success. Other possible return values are described in libcrash(5).
EXAMPLES
Assuming a process opened a crash dump, the following call to cr_read(3) reads the first pages from the crash dump into the buffer pointed
to by mybuf:
WARNINGS
may return fewer pages than requested due to implementation details. Always check the number of pages returned. If they are fewer than
requested, issue a new request starting at the first page not returned. Only if that new request reads zero pages (or returns an error)
can you be sure that the page was not dumped.
AUTHOR
was developed by HP.
SEE ALSO
cr_open(3), libcrash(5).
cr_read(3)