PERF-SCHED(1) perf Manual PERF-SCHED(1)NAME
perf-sched - Tool to trace/measure scheduler properties (latencies)
SYNOPSIS
perf sched {record|latency|map|replay|script}
DESCRIPTION
There are five variants of perf sched:
'perf sched record <command>' to record the scheduling events
of an arbitrary workload.
'perf sched latency' to report the per task scheduling latencies
and other scheduling properties of the workload.
'perf sched script' to see a detailed trace of the workload that
was recorded (aliased to 'perf script' for now).
'perf sched replay' to simulate the workload that was recorded
via perf sched record. (this is done by starting up mockup threads
that mimic the workload based on the events in the trace. These
threads can then replay the timings (CPU runtime and sleep patterns)
of the workload as it occurred when it was recorded - and can repeat
it a number of times, measuring its performance.)
'perf sched map' to print a textual context-switching outline of
workload captured via perf sched record. Columns stand for
individual CPUs, and the two-letter shortcuts stand for tasks that
are running on a CPU. A '*' denotes the CPU that had the event, and
a dot signals an idle CPU.
OPTIONS -i, --input=<file>
Input file name. (default: perf.data unless stdin is a fifo)
-v, --verbose
Be more verbose. (show symbol address, etc)
-D, --dump-raw-trace=
Display verbose dump of the sched data.
SEE ALSO perf-record(1)perf 06/30/2014 PERF-SCHED(1)
Check Out this Related Man Page
PERF-MEM(1) perf Manual PERF-MEM(1)NAME
perf-mem - Profile memory accesses
SYNOPSIS
perf mem [<options>] (record [<command>] | report)
DESCRIPTION
"perf mem -t <TYPE> record" runs a command and gathers memory operation data from it, into perf.data. Perf record options are accepted and
are passed through.
"perf mem -t <TYPE> report" displays the result. It invokes perf report with the right set of options to display a memory access profile.
OPTIONS
<command>...
Any command you can specify in a shell.
-t, --type=
Select the memory operation type: load or store (default: load)
-D, --dump-raw-samples=
Dump the raw decoded samples on the screen in a format that is easy to parse with one sample per line.
-x, --field-separator
Specify the field separator used when dump raw samples (-D option). By default, The separator is the space character.
-C, --cpu-list
Restrict dump of raw samples to those provided via this option. Note that the same option can be passed in record mode. It will be
interpreted the same way as perf record.
SEE ALSO perf-record(1), perf-report(1)perf 06/30/2014 PERF-MEM(1)
Hi,
I am facing this problem from few days.
Am using gunzip to unzip .gz file in my script.
If i am running manually its unziping the file.
But when i am scheduling the script using demon.cron file, its not unzipping.
Can anyone please tell me what could be the problem.
Its very urgent.... (1 Reply)
I have asked this question here before and got the answer too. Unfortunately I used only one record as an example and the script works fine for one record but not for more than one record.
Can anybody help me with writing a script for the data that I want to use from one file based on the... (13 Replies)
I am running HPUX and using WLM (workload manager). I want to write a script to fork CPUs to basically take CPUs from other servers to show that the communication is working and CPU licensing is working. Basically, I want to build a script that will use up CPU on a server. Any ideas? (2 Replies)
Hi All,
I searched other threads and could not find any relevant post about this.
I searched for process 0 in SUN OS and could find the sched/swapper process listed.
root 0 0 0 Apr 25 ? 0:06 sched
but i couldnt not find the swapper process (PID 0) in AIX. Is that... (4 Replies)
Hello all,
I'm looking for a sheduler and workload automation Open Source, to use in a wide company.
I was looking threads similar but I didn't found it.
Anynone knows one?
Thanks (2 Replies)
I have a script which will mask the 9th and 15th column in a record starting with BPR.
The record looks like below before my script
BPR*C*160860.04*C*ACH*CTX*01*072000326*DA*1548843*3006968523**01*071000013*DA*5529085*100323*VEN
The record will be masked after my script parses this... (19 Replies)
Hi,
I want a script , which searches the log for the term/phrase "JFSnapshotService::systemSnapshot: Starting data capture. This may take awhile depending upon system workload." and if there is some logging like this, it has to mail me that this data capture process is happening.,
Below is... (2 Replies)
Hi,
We access our workloads using usrun. Login is automatic as we are either in the profile for that workload or not.
So each user logs into the same account - e.g. wloadexe
Each of the users logs in from a machine where they have their own account. e.g. johndoe
So when they log... (3 Replies)
I have an initial record 0.018
I would like a script that would for i=0;i<200;i++ print
0.018*1
0.018*2
0.018*3
0.018*4
...
0.018*200
using newline. (7 Replies)
Hi community,
I'm looking for a script/code which starts a shell script with a MPI process depending on:
a) the processor workload, i.e. if the workload falls below a certain limit
b) alternatively if the previous process finished, e.g. if a process ID disappears
I need this for... (3 Replies)
Hello everyone,
I am trying to label the X axis of a plot, using the Greek letter 'nu' within it.
So I have:
ax.set_xlabel('Energy ($ h \nu $) / eV') all the other Greek letters I have tried work perfectly this way, as in LaTex, but with \nu, apparently it recognizes \n as 'new line' and I end... (2 Replies)
Hi
Currently we have SAN setup in our Redhat Environment.
I have used iostat tool and ran it couple of times, i think there is IO bottle neck.
Can anyone suggest any other tools or help me how to perform multiple Reads/Writes to test its performance (1 Reply)
I'm not able to run perf on linux 4.4. I'm using ubuntu 15.10.
The error I'm getting is:
WARNING: perf not found for kernel 4.4.0
You may need to install the following packages for this specific kernel: linux-tools-4.4.0-4.4.0 linux-cloud-tools-4.4.0-4.4.0
You may also want to install... (4 Replies)