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23%
Monitoring Performance with sar
05.03.2014
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-s 12:
00:00
-e 13:
00:00
Linux
3
.5.0-43-generic (hercules) 02.12.2013 _x86_64_ (2 CPU) 12:05:01 CPU %user %nice %system %iowait %steal %idle 12
23%
Collecting and evaluating performance data over a period of time
20.03.2014
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2014
»
Issue 19: Perim...
»
jcb@hercules:# sar -u -f /var/log/sysstat/sa02 -s 12:
00:00
-e 13:
00:00
Linux
3
.5.0-43-generic (hercules) 02.12.2013 _x86_64_ (2 CPU) 12:05:01 CPU %user %nice %system
23%
Profiling Python code
30.01.2020
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2020
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Issue 55: AWS L...
»
%|
3
| 2|
3
.50475e-05| 1.75238e-05| 0.
00
%|import platform 4| 1| 2.19345e-05| 2.19345e-05| 0.
00
%|from time import clock (call)| 1| 2.67029e-05| 2.67029e-05| 0.
00
23%
Processor and Memory Metrics
12.02.2014
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.py CPU ALL: 1.0 % CPU0 4.1% CPU1 2.0% CPU2 0.0% CPU
3
0.0% CPU4 0.0% CPU5 0.0% CPU6 0.0% CPU7 2.0% CPU ALL: user: 0.7% nice:
0.0
% system: 0.2% idle
22%
Security first with the Hiawatha web server
11.04.2016
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2016
»
Issue 32: Measu...
»
-fastcgi are running, as expected. Listing 1 Process List root 589
0.0
0.
3
142492 3092 ? Ss 20:35 0:
00
nginx: master process /usr/sbin/nginx -g daemon on; master_process on; www
22%
mpi4py – high-performance distributed Python
30.11.2020
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Issue 60: Secur...
»
): 11 12 s =
0.0
13 s += h * f(a) 14 for i in range(1, n): 15 s += 2.0 * h * f(a + i*h) 16 # end for 17 s += h * f(b) 18 return (s/2.) 19 # end def 20 21
22
# Main section 23 comm = MPI
22%
networkd and nspawn in systemd
11.04.2016
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Issue 32: Measu...
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?
00
:02:39 systemd You can define a container launched in this way as a system service with machinectl start Fedora-Cloud-Base-
22
-20150521.x86_64 and then log in to the container using
22%
Systemd network management and container handling
13.06.2016
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Issue 33: IPv6...
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/run/systemd/resolve/resolv.conf /etc/resolv.conf mkdir /etc/systemd/network Listings 2 and
3
show the two configuration files for the regular Ethernet card (Listing 2) and bridge device (Listing
3
22%
Asynchronous PostgreSQL
12.09.2013
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2013
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Issue 16: Docker
»
.pl
00:00:00
.50023 The output shows the amount of computing time the database engine consumed. You can pass in the desired time as a CGI parameter: $ curl http://localhost/cgi/burn0.pl\?
3
00:00
22%
Greylisting with Postgrey
22.06.2012
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: Qmail Delivery Retry Events Delivery Attempt Seconds D-HH:MM:SS 1 0 0-
00:00:00
2 400 0-
00
:06:40
3
1600 0-
00
:26:40 4
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