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23%
Filesystem Murder Mystery
09.04.2019
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»
Archive
»
2019
»
Issue 50: Bpfilter
»
in mv ubuntu@aws:~/slow-mv$ strace -t mv
3
GB.copy
3
GB 19:
00
:09 execve("/bin/mv", ["mv", "
3
GB.copy", "
3
GB"], 0x7ffd0e7dddf8 /* 21 vars */) = 0 19:
00
:09 brk(NULL) = 0x55cd7d1ce000
23%
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
23%
Asynchronous PostgreSQL
12.09.2013
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»
Archive
»
2013
»
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
23%
Monitoring Storage with iostat
25.02.2013
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HPC
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) 01/31/2013 _i686_ (1 CPU)01/31/2013 09:56:01 AM avg-cpu: %user %nice %system %iowait %steal %idle 14.78 0.38
3
.47 2.16 0.
00
79.21 Device: rrqm/s wrqm
23%
Understanding the Status of Your Filesystem
18.06.2014
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HPC
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( 0.08%) ( 99.93% cumulative) [2920-3650 days]: 136 ( 0.04%) ( 99.97% cumulative) [3650-4380 days]:
3 ( 0.00
%) ( 99.97% cumulative) [4380-5110 days]: 122 ( 0.03%) (100.
00
% cumulative) [5110
22%
Speed up your MySQL database
11.02.2016
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2016
»
Issue 31: Tunin...
»
.40 <- < 71% idle > 0 1.
00
0.
00
0.37 0.
00
0.
00
0.06 0.
00
0.
00
0.
00
98.57 1 100.
00
0.
00
0.
00
0.
00
0.
00
0.
00
0.
00
0.
00
0.
00
0.
00
2
3
.77 0.
00
22%
Kea, the ISC's successor to the DHCP daemon
03.08.2023
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2023
»
Issue 76: Energ...
»
Administrator Reference Manual [
3
]. Listing 5 Leases Database "lease-database": { "type": "postgresql", "name": "kea", "user": "dhcp", "password": "dhcp", "host": "localhost", "port":
5432
22%
Process, Network, and Disk Metrics
26.02.2014
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reqs merged:
3
.78/s Write reqs completed: 2.10/s Read BW: 0.
00
MB/s Write BW: 0.02 MB/s Avg sector size issued 23.78 Avg
22%
Distributed storage with Sheepdog
07.10.2014
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»
2014
»
Issue 23: 10 Ti...
»
(Listing
3
). Listing
3
Defining Replication Factors 01 # dog vdi list 02 Name Id Size Used Shared Creation time VDI id Copies Tag 03 one.img 0 4.0 MB
0.0
MB
0.0
22%
Admin as a service with sysstat for ex-post monitoring
01.06.2024
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2024
»
Issue 81: Load...
»
in the /usr/lib/systemd/system/sysstat-collect.timer file. You can set a scan every five minutes by entering *:
00
/05 instead of the default setting *:
00
/10: [Unit] Description=Run system activity accounting
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