From my output
Does it mean 75% of my CPU is idling,while user's process are taking 3.9% and system processing at taking up 20.5% of the CPU's resources?
i'm a relative newbie to unix (i'm on OSX) and i have a specific problem i'm tripped up on:
i'm piping the output of top (in log format) into an awk command which formats the information (and eventually will send it out continuously via udp/osc to another app). my problem is with what comes up... (4 Replies)
#!/bin/sh
echo `date +%F:%T` >> top.out
echo `top -n1` >> top.out
Hi all, i am trying to capture the output of the 'top' command in linux.
when i run the command manually, it works.
However, when i run it as a cronjob,the 'top' output is not being printed to the file,only the date is... (1 Reply)
Hey guys,
I'm trying to merge the output from the ps and top commands; since I need the full command used (only showed in the ps), and the cpu usage with some decimal numbers (i.e.: 0.05%, only showed in top).
After exporting to different files, I was thinking of doing an egrep with the... (0 Replies)
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)
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)
Hi,
I've installed SMCtop on to a Solaris 9 sparc server and I am trying to capture the output of top to a file without success. The version of top I have installed is top-3.6.1-sol9-sparc-local.gz. All my attempts are below.
# /usr/local/bin/top -d 5 -f /tmp/top.out... (3 Replies)
ok, so I have a script im running on a linux box that uses "egrep" a lot. now, when i run this script, i check the TOP to see how much system resource it is using.
the "top" command gives the following output:
last pid: 25384; load avg: 1.06, 1.04, 0.76; up 351+06:30:24 ... (0 Replies)
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)
Guys can you help me fix this parse error.
Here's my script.
#!/bin/bash
# Set up limit below
NOTIFY="6.0% us 6.1% us 6.2% us 6.3% us 6.5% us 6.6% us 6.7% us 6.8% us 6.9% us 7.0% us"
# CPU Usage every minute
TOP="$(top -b -n2 -d 00.20 |grep Cpu|tail -1 | awk -F ":" '{ print $2 }' | cut... (3 Replies)
Hi ,
i am trying to set up an alert, when CPU usage (0.2%us in below output) is more than 40%
top | head | grep '^Cpu'
Cpu(s): 0.2%us, 0.2%sy, 0.0%ni, 99.1%id, 0.6%wa, 0.0%hi, 0.0%si, 0.0%st
using CUT, i pulled the value 0.2 and assigned to CPU (variable)
CPU=$(expr `top | head -10... (5 Replies)
Discussion started by: Prateek007
5 Replies
LEARN ABOUT NETBSD
percpu
PERCPU(9) BSD Kernel Developer's Manual PERCPU(9)NAME
percpu, percpu_alloc, percpu_free, percpu_getref, percpu_putref, percpu_foreach -- per-CPU storage allocator
SYNOPSIS
#include <sys/percpu.h>
typedef void (*percpu_callback_t)(void *, void *, struct cpu_info *);
percpu_t *
percpu_alloc(size_t size);
void
percpu_free(percpu_t *pc, size_t size);
void *
percpu_getref(percpu_t *pc);
void
percpu_putref(percpu_t *pc);
void
percpu_foreach(percpu_t *pc, percpu_callback_t cb, void *arg);
DESCRIPTION
The machine-independent percpu interface provides per-CPU, CPU-local memory reservations to kernel subsystems. percpu_alloc(size) reserves
on each CPU an independent memory region of size bytes that is local to that CPU, returning a handle (percpu_t) to those regions. A thread
may subsequently ask for a pointer, p, to the region held by the percpu_t on the thread's current CPU. Until the thread relinquishes the
pointer, or voluntarily sleeps, the thread may read or write the region at p without causing interprocessor memory synchronization.
FUNCTIONS
percpu_alloc(size)
Call this in thread context to allocate size bytes of local storage on each CPU. The storage is initialized with zeroes. Treat
this as an expensive operation. percpu_alloc() returns NULL on failure, and a handle for the per-CPU storage on success.
percpu_free(pc, size)
Call this in thread context to return to the system the per-CPU storage held by pc. size should match the size passed to
percpu_alloc(). When percpu_free() returns, pc is undefined. Treat this as an expensive operation.
percpu_getref(pc)
Disable preemption and return a pointer to the storage held by pc on the local CPU. Use percpu_getref() in either thread or inter-
rupt context. Follow each percpu_getref() call with a matching call to percpu_putref().
percpu_putref(pc)
Indicate that the thread is finished with the pointer returned by the matching call to percpu_getref(). Re-enables preemption.
percpu_foreach(pc, cb, arg)
On each CPU, for ci the corresponding struct cpu_info * and p the CPU-local storage held by pc, run (*cb)(p, arg, ci). Call this in
thread context. cb should be non-blocking and fast. Do not rely on cb to be run on the CPUs in any particular order.
CODE REFERENCES
The percpu interface is implemented within the file sys/kern/subr_percpu.c.
SEE ALSO atomic_ops(3), kmem(9), pcq(9), pool_cache(9), xcall(9)HISTORY
The percpu interface first appeared in NetBSD 6.0.
AUTHORS
YAMAMOTO Takashi <yamt@NetBSD.org>
BSD January 23, 2010 BSD