http://www.brendangregg.com/USEmethod/use-linux.html
Checkpoint Perf analyis
http://www.brendangregg.com/USEmethod/use-linux.html
Checkpoint Perf analyis
Check, if a website is still reachable – over proxy connection with wget – on windows !!
Wget for Windows ist avalable here.
wget.exe -Y 1 -d -v -S -O D:\Programme\wget\index.shtml -a D:\Programme\wget\www.bahn.de.log http://www.bahn.de/p/view/index.shtml
Had to set the environment variable http_proxy=http://proxy.youdomain.somewhere:Port
The used paramters are explained here.
Problem: File copy on a Windows Server 2008 R2 x64 from a Windows Server 2003 R2 x64 network share is very slow.
Solution (in my environment): Fire the following command as an administrator and reboot the server:
netsh interface tcp set global autotuninglevel=disabled
On a german OS this leads to the following state:
Before:
After:
For further reading: Link
Now file copy over network is kind fun again… 🙂
Einige Dinge zum Plattendurchsatz:
Storage Performance Council – SPC
http://www.storageperformance.org
ElasticSky IOPS Berechnung:
http://www.elasticsky.de/2012/06/iops-berechnung/
Transaction Processing Performance Council – TPC
www.tpc.org
Ein paar Tools:
IOzone – Kostenloser Dateisystembenchmark
http://www.iozone.org/
SQLIO – Disk Subsystem Benchmark Tool
http://www.microsoft.com/download/en/details.aspx?id=20163
ioMeter – Iometer is an I/O subsystem measurement and characterization tool
http://www.iometer.org/
Bonnie++ – Bonnie++ is a benchmark suite that is aimed at performing a number of simple tests of hard drive and file system performance
http://www.coker.com.au/bonnie++/
Oracle Orion – ORION (Oracle I/O Calibration Tool) is a standalone tool for calibrating the I/O performance for storage systems that are intended to be used for Oracle databases
http://www.oracle.com/technetwork/topics/index-089595.html
Exchange Server Stress -This tool simulates large numbers of client sessions running on Exchange Server 2007
http://www.microsoft.com/en-us/download/details.aspx?id=20547
LoadSim — Exchange Server 2003 Stresstest Tool
http://www.microsoft.com/en-us/download/details.aspx?id=474
VMware IO-Analyzer
https://labs.vmware.com/flings/io-analyzer
JetStress,
Nette Tools, um die Netzwerkbandbeite zwischen 2 Stationen zu messen:
jPerf:
http://code.google.com/p/xjperf/
… recht nützliche Einführung in die Benutzung von jPerf:
http://www.nwlab.net/know-how/JPerf/
NetIO:
http://www.nwlab.net/art/netio/netio.html
DSCP ToS QoS Presidence Comparison Chart
Guter Artikel über die Laod Average auf einem Linux System:
http://www.linuxjournal.com/article/9001?page0,2
… und hier wird das Thema ebenfalls behandelt, konkret anhand des Utilities „sar“:
http://www.cmdln.org/2009/01/28/cpu-performance-analysis-in-linux/