02-28-2017
10 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
Hi all, below is the output of my 'top' Tasks: 91 total, 2 running, 89 sleeping, 0 stopped, 0 zombie
Cpu(s): 3.9% us, 20.5% sy, 0.0% ni, 75.6% id, 0.0% wa, 0.0% hi, 0.0% si
Can someone tell me what does us, sy,ni,id,wa,hi,si stands stand for? (4 Replies)
Discussion started by: new2ss
4 Replies
2. Shell Programming and Scripting
Hi all, I'd like to capture the output from the 'top' command to monitor my CPU and Mem utilisation.Currently my command isecho date
`top -b -n1 | grep -e Cpu -e Mem` I get the output in 3 separate lines.Tue Feb 24 15:00:03
Cpu(s): 3.4% us, 8.5% sy .. ..
Mem: 1011480k total, 226928k used, ....... (4 Replies)
Discussion started by: new2ss
4 Replies
3. Shell Programming and Scripting
Hi,
I have a system under test, and I use a script that does a ps.
The output, is in the following format, it's basically the timestamp, followed by the rss and vsize.
09:03:57 68404 183656 68312 181944 69860 217360 67536 182564 69072 183172 69032 199276
09:04:27 68752 183292 70000 189020... (5 Replies)
Discussion started by: Bloke
5 Replies
4. Solaris
Solaris experts,
Am struggling, and wondering for the past more than one week that, how to calculate the total available and used memory/swap space.
Finally installed and used top & got some understanding, but while cross-checking, there are mismatches.
Main Memory
top o/p - 2GB... (7 Replies)
Discussion started by: thegeek
7 Replies
5. Shell Programming and Scripting
alert.log has the entries with ORA-XXXX,
....
Mon Sep 24 15:08:09 2012
WARNING: inbound connection timed out (ORA-3136)
Mon Sep 24 15:08:09 2012
WARNING: inbound connection timed out (ORA-3136)
Mon Sep 24 15:08:09 2012
WARNING: inbound connection timed out (ORA-3136)
Mon Sep 24 15:15:01... (4 Replies)
Discussion started by: Daniel Gate
4 Replies
6. Shell Programming and Scripting
Please help,
file1.txt
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file2.txt
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All I need is this result.txt
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2 (17 Replies)
Discussion started by: richmac
17 Replies
7. Shell Programming and Scripting
Hi,
I have to output a new csv file from an input csv file with first unique value in the first column.
input csv file
color product id status
green 102 pass
yellow 201 hold
yellow 202 keep
green 101 ok
green 103 hold
yellow 203 ... (5 Replies)
Discussion started by: Chris LAU
5 Replies
8. Solaris
hello All. I am working on something that should be really simply.
It turns out that its not. I am trying to produce output to list the hostname along with all the current running programs.
the script im using is:
for PS in `ps -Ao "user,args" | cut -d' ' -f1,2`
do
echo "`uname -n`, $PS"... (5 Replies)
Discussion started by: busi386
5 Replies
9. Shell Programming and Scripting
Hi ,
i have a belwo script which is used to get sectors per track value extarcted from Solaris machine:
for DISK in /dev/dsk/c*t*d*s*; do value=`prtvtoc "$DISK" | sed -n -e '/Dimensions/,/Flags/{/Dimensions/d; /Flags/d; p; }' | sed -n -e '/sectors\/track/p'`; if ; then echo... (4 Replies)
Discussion started by: omkar.jadhav
4 Replies
10. UNIX for Beginners Questions & Answers
Input file:
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18 (6 Replies)
Discussion started by: Sagar Singh
6 Replies
LEARN ABOUT NETBSD
nbperf
NBPERF(1) BSD General Commands Manual NBPERF(1)
NAME
nbperf -- compute a perfect hash function
SYNOPSIS
nbperf [-ps] [-a algorithm] [-c utilisation] [-h hash] [-i iterations] [-m map-file] [-n name] [-o output] [input]
DESCRIPTION
nbperf reads a number of keys one per line from standard input or input. It computes a minimal perfect hash function and writes it to stdout
or output. The default algorithm is "chm".
The -m argument instructs nbperf to write the resulting key mapping to map-file. Each line gives the result of the hash function for the
corresponding input key.
The parameter utilisation determines the space efficiency.
Supported arguments for -a:
chm This results in an order preserving minimal perfect hash function. The utilisation must be at least 2, the default. The number of
iterations needed grows if the utilisation is very near to 2.
chm3
Similar to chm. The resulting hash function needs three instead of two table lookups when compared to chm. The utilisation must be at
least 1.24, the default. This makes the output for chm3 noticable smaller than the output for chm.
bpz This results in a non-order preserving minimal perfect hash function. Output size is approximately 2.79 bit per key for the default
value of utilisation, 1.24. This is also the smallest supported value.
Supported arguments for -h:
mi_vector_hash Platform-independent version of Jenkins parallel hash. See mi_vector_hash(3).
The number of iterations can be limited with -i. nbperf outputs a function matching uint32_t hash(const void * restrict, size_t) to stdout.
The function expects the key length as second argument, for strings not including the terminating NUL. It is the responsibility of the call-
er to pass in only valid keys or compare the resulting index to the key. The function name can be changed using -n name. If the -s flag is
specified, it will be static.
After each failing iteration, a dot is written to stderr.
nbperf checks for duplicate keys on the first iteration that passed basic hash distribution tests. In that case, an error message is printed
and the program terminates.
If the -p flag is specified, the hash function is seeded in a stable way. This may take longer than the normal random seed, but ensures that
the output is the same for repeated invocations as long as the input is constant.
EXIT STATUS
The nbperf utility exits 0 on success, and >0 if an error occurs.
SEE ALSO
mi_vector_hash(3)
AUTHORS
Jorg Sonnenberger
BSD
September 25, 2012 BSD