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25%
Network analysis with the Bro Network Security Monitor
05.12.2014
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»
Archive
»
2014
»
Issue 24: Visua...
»
400 Oct 20
00:00
ssh.23:
00:00-00:00:00
.log.gz -rw-r--r--. 1 root root 1268 Oct 19
22:00
weird.21:34:
12-22:00:00
.log.gz -rw-r--r--. 1 root root 2477 Oct 19 23:
00
weird.
22:00:00-23:00:00
.log.gz -rw
24%
When I/O workloads don't perform
02.08.2021
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2021
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Issue 64: Bare...
»
%util sda 10.91 6.97 768.20 584.64 4.87 18.20 30.85 72.31 13.16 20.40 0.26 70.44 83.89 1.97 3.52 nvme0n1 58.80
12.22
17720.47 48.71 230
24%
When I/O Workloads Don’t Perform
12.05.2021
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30.85 72.31 13.16 20.40 0.26 70.44 83.89 1.97 3.52 nvme0n1 58.80
12
.
22
17720.47 48.71 230.91 0.01 79.70 0.
08
0.42 0.03 0.
00
24%
Monitoring Performance with sar
05.03.2014
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:15:01 all 2.
08
0.
00 0.96 0.02 0.00
96.94
12
:25:01 all 1.96 0.
00 0.82 0.06 0.00
97.16
12
:35:01 PM all 1.
22
0.
00 0.73 0.00 0.00
24%
Collecting and evaluating performance data over a period of time
20.03.2014
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2014
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Issue 19: Perim...
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%iowait %steal %idle
12
:15:01 all 2.
08
0.
00
0.96 0.02 0.
00
96.94
12
:25:01 all 1.96 0.
00
0.82 0.06 0.
00
97.16
12
:35:01 PM
24%
Rethinking RAID (on Linux)
16.03.2021
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=libaio, iodepth=32 fio-3.
12
Starting 1 process Jobs: 1 (f=1): [w(1)][100.0%][w=1420KiB/s][w=355 IOPS][eta
00
m:
00
s] test: (groupid=0, jobs=1): err= 0: pid=3377: Sat Jan 9 15:31:04 2021 write: IOPS=352, BW=1410Ki
23%
The practical benefits of network namespaces
15.08.2016
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2016
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Issue 34: Softw...
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Virtual Ethernet Devices 01 $ ip netns exec ns1 ip link add name veth1 type veth peer name veth2 02 $ ip netns exec ns1 tree /sys/class/net 03 /sys/class/net 04 |---eth1 -> ../../devices/pci0000:
00/0000:00:08
22%
Rethinking RAID (on Linux)
25.03.2021
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2021
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Issue 62: Lean...
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0[0
] 2094080 blocks super
1.2
[
2/2
] [UU] ** unused devices:
The initialization time should be relatively quick here. Also, verify the RAID1 mirror details (Listing 13) and rerun the random
22%
Profiling Python code
30.01.2020
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2020
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Issue 55: AWS L...
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and a truncated distance 243| 12475000| 50.5158| 4.04936e-06| 3.04%| d =
0.0
244| 49900000| 209.465| 4.1977e-06|
12
.60%| for k in range(0, d_num): 245
22%
Greylisting with Postgrey
22.06.2012
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