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Darius Juodokas

Performance Engineer | Java developer | Linux/Unix administrator | (dev|net|sys|NO)Ops

Location Vilnius, Lithuania Joined Joined on  github website

Work

Performance Engineer

Building my own (new) Linux router. WiFi card properties and their explanations (iw phy)
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Building my own (new) Linux router. WiFi card properties and their explanations (iw phy)

#wifi #linux #router #wireless
1
Comments
48 min read

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HP LoadRunner results analysis. Queries
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HP LoadRunner results analysis. Queries

Comments
7 min read
Stack Trace / Thread Dump Analysis
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Stack Trace / Thread Dump Analysis

#performance #analysis #stack #threaddump
6
Comments
26 min read
JVM. Garbage Collector
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JVM. Garbage Collector

#java #jvm #gc #memory
7
Comments
18 min read
Performance Engineering. Intro
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Performance Engineering. Intro

#performance #perfeng
3
Comments
19 min read
Should I use a library for that?
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Should I use a library for that?

#dependencies #design #hell #security
7
Comments
18 min read
JVM. Memory management
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JVM. Memory management

#jvm #java #middleware #memory
16
Comments 1
12 min read
JVM. Intro
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JVM. Intro

#java #jvm #middleware
Comments
3 min read
"Avoid Round-Robin in PROD" or "The tale of the bad raspberry"
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"Avoid Round-Robin in PROD" or "The tale of the bad raspberry"

#loadbalancing #performance #roundrobin #truestory
7
Comments
11 min read
Performance and security testing. Why bother?
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Performance and security testing. Why bother?

#performance #security #business #clients
2
Comments
12 min read
Computer networks. Routing
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Computer networks. Routing

#networks #basics #routing
7
Comments
17 min read
Computer networks - the basics: OSI and devices
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Computer networks - the basics: OSI and devices

#networks #basics #osi
5
Comments
14 min read
Iptables - a beast worth training: a firewall, a (NAT) router, a port-forwarder, an LB, anti-DoS, a logger,... for free!
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Iptables - a beast worth training: a firewall, a (NAT) router, a port-forwarder, an LB, anti-DoS, a logger,... for free!

#iptables #netfilter #linux #networks
16
Comments 2
15 min read
Iptables - a beast worth training: netfilter, tables, and chains
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Iptables - a beast worth training: netfilter, tables, and chains

#netfilter #iptables #linux #networks
15
Comments
8 min read
SSH - a tool for IT engineers
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SSH - a tool for IT engineers

#ssh #linux #networks
12
Comments
12 min read
Kubernetes - quickly set up your own cluster
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Kubernetes - quickly set up your own cluster

#kubernetes #k8s #howto #cheatsheet
14
Comments
6 min read
Kubernetes on VPN (WireGuard)
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Kubernetes on VPN (WireGuard)

#kubernetes #k8s #wireguard #vpn
20
Comments 2
9 min read
16 Killed java $JVM_OPTS -jar app.jar
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16 Killed java $JVM_OPTS -jar app.jar

#java #jvm #linux #oomkiller
5
Comments
11 min read
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