12-13-2018
Both the linked thread and MOS Document are correct.
vmstat is reporting that there is unused RAM and it is true. There is no data stored on that RAM.
malloc fails because there is no more swap or RAM available. All of it is either used or unused but reserved.
Let me try a metaphor: if you enter a restaurant and see many empty tables, that doesn't mean you can sit on any of them. They might all be reserved by customers that aren't there yet (and maybe some will never show up).
This User Gave Thanks to jlliagre For This Post:
10 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
Hi all!
Working on Oracle v8i/9i on Unix Sun Solaris v8.0.
I am experiencing excessive paging & Swapping.Would like to know the cause.
I guess:could be due to inappropriate setting of Unix Kernel Parameters...
Please correct me if I am wrong!
Thanks&Regards,
Amit. (5 Replies)
Discussion started by: Amitstora
5 Replies
2. Filesystems, Disks and Memory
Hi Guys: Would like to know how to check system swapping and paging and some theory on how they function. I am an oracle dba and my environment is 8171 on AIX 433. We have a 1GB of RAM on the box and I am educating myself to see how much more SGA can be accommodated on the box and what are the... (2 Replies)
Discussion started by: ST2000
2 Replies
3. UNIX for Dummies Questions & Answers
Hi
How can I determine if swapping is occuring on a server.
Thanks,
Leo (2 Replies)
Discussion started by: leo
2 Replies
4. SuSE
Hello!
Why does my SuSE GNU/Linux machine swap?
I have a Gig of ram, currently 14MBs of free RAM, 724MB - buffers and caches...
That is 685MB of cached RAM, then kernel really should'nt have to swap, It should release cached memory in my thinkin...
It has only swaped 3MB's but still,... (3 Replies)
Discussion started by: Esaia
3 Replies
5. UNIX for Advanced & Expert Users
can anybody explain me the concepts
virtual memory mangement, swapping and paging?
although i roughly know what they are , i need
more solid distinction between them, and also i want to figure out
the relations between them?
do you have any well-defined definitons for this concepts? (2 Replies)
Discussion started by: gfhgfnhhn
2 Replies
6. UNIX for Dummies Questions & Answers
Hi,
I am attempting to replace several similar words with another word in vi. Here is what I have written for the script:
3dTcat -prefix SuperBrik_4WAY_HRF ../JULY10_2007A/results2TENT/stats.JULY10_2007A+tlrc ../JULY10_2007G/results2TENT/stats.JULY10_2007G+tlrc... (1 Reply)
Discussion started by: Jahn
1 Replies
7. Shell Programming and Scripting
I have some text:
<date>some_date</date>
<text>some_text</text>
<name>some_name<name>
and I want to transform it to smthng like that:
some_name on some_date: some_text
I've tried sed:
sed 's/<text>\(.*\)<\/text>
<name>\(.*\)<\/name>/\2 - \1/'
but it says unterminated... (13 Replies)
Discussion started by: dsjkvf
13 Replies
8. Shell Programming and Scripting
Hallo Team,
This is the command that i am running :
grep ",Call Forward Not Reachable" *2013*
this is the output that i am getting (i did a head -10 but the files can be more than 1000)
... (8 Replies)
Discussion started by: kekanap
8 Replies
9. Solaris
Hi Guys
I am using SPARC-T4 (chipid 0, clock 2998 MHz), SunOS 5.10 Generic_150400-38 sun4v.
How do I see if the server was doing some swapping like yesterday?
I had a java application error with java.lang.OutOfMemoryError, now I want to check if the server was not doing some swapping at... (4 Replies)
Discussion started by: Phuti
4 Replies
10. Shell Programming and Scripting
Hi there,
I have a text that I'm trying to format into something more readable. However, I'm stuck in the last step. I've searched and tried things over the internet with no avail.
OS: Mac
After parsing the original text that I won't put here, I managed to get something like this, but this... (8 Replies)
Discussion started by: Kibou
8 Replies
LEARN ABOUT MOJAVE
systemd-cryptsetup-generator
SYSTEMD-CRYPTSETUP-GENERATOR(8) systemd-cryptsetup-generator SYSTEMD-CRYPTSETUP-GENERATOR(8)
NAME
systemd-cryptsetup-generator - Unit generator for /etc/crypttab
SYNOPSIS
/lib/systemd/system-generators/systemd-cryptsetup-generator
DESCRIPTION
systemd-cryptsetup-generator is a generator that translates /etc/crypttab into native systemd units early at boot and when configuration of
the system manager is reloaded. This will create systemd-cryptsetup@.service(8) units as necessary.
systemd-cryptsetup-generator implements systemd.generator(7).
KERNEL COMMAND LINE
systemd-cryptsetup-generator understands the following kernel command line parameters:
luks=, rd.luks=
Takes a boolean argument. Defaults to "yes". If "no", disables the generator entirely. rd.luks= is honored only by initial RAM disk
(initrd) while luks= is honored by both the main system and the initrd.
luks.crypttab=, rd.luks.crypttab=
Takes a boolean argument. Defaults to "yes". If "no", causes the generator to ignore any devices configured in /etc/crypttab
(luks.uuid= will still work however). rd.luks.crypttab= is honored only by initial RAM disk (initrd) while luks.crypttab= is honored
by both the main system and the initrd.
luks.uuid=, rd.luks.uuid=
Takes a LUKS superblock UUID as argument. This will activate the specified device as part of the boot process as if it was listed in
/etc/crypttab. This option may be specified more than once in order to set up multiple devices. rd.luks.uuid= is honored only by
initial RAM disk (initrd) while luks.uuid= is honored by both the main system and the initrd.
If /etc/crypttab contains entries with the same UUID, then the name, keyfile and options specified there will be used. Otherwise, the
device will have the name "luks-UUID".
If /etc/crypttab exists, only those UUIDs specified on the kernel command line will be activated in the initrd or the real root.
luks.name=, rd.luks.name=
Takes a LUKS super block UUID followed by an "=" and a name. This implies rd.luks.uuid= or luks.uuid= and will additionally make the
LUKS device given by the UUID appear under the provided name.
rd.luks.name= is honored only by initial RAM disk (initrd) while luks.name= is honored by both the main system and the initrd.
luks.options=, rd.luks.options=
Takes a LUKS super block UUID followed by an "=" and a string of options separated by commas as argument. This will override the
options for the given UUID.
If only a list of options, without an UUID, is specified, they apply to any UUIDs not specified elsewhere, and without an entry in
/etc/crypttab.
rd.luks.options= is honored only by initial RAM disk (initrd) while luks.options= is honored by both the main system and the initrd.
luks.key=, rd.luks.key=
Takes a password file name as argument or a LUKS super block UUID followed by a "=" and a password file name.
For those entries specified with rd.luks.uuid= or luks.uuid=, the password file will be set to the one specified by rd.luks.key= or
luks.key= of the corresponding UUID, or the password file that was specified without a UUID.
rd.luks.key= is honored only by initial RAM disk (initrd) while luks.key= is honored by both the main system and the initrd.
SEE ALSO
systemd(1), crypttab(5), systemd-cryptsetup@.service(8), cryptsetup(8), systemd-fstab-generator(8)
systemd 237 SYSTEMD-CRYPTSETUP-GENERATOR(8)