Posts

Linux journaling concept for performance

http://www.inf.ufpr.br/pedro/pdfs/wso12.pdf

Linux IO scheduler Options

http://searchdatacenter.techtarget.com/tip/Consider-these-Linux-I-O-scheduler-options-for-storage-performance?utm_content=control&utm_medium=EM&asrc=EM_ERU_76939074&utm_campaign=20170511_ERU%20Transmission%20for%2005/11/2017%20(UserUniverse:%202368052)&utm_source=ERU&src=5634082

Openldap configuration

http://linoxide.com/linux-how-to/setup-openldap-multi-master-replication-centos-7/

Remove Commented "#" lines from file in Linux

#egrep -v "^[[:space:]]*#|^$" /etc/ipsec.conf config setup          plutodebug=all          plutostderrlog=/var/log/pluto.log          protostack=netkey          nat_traversal=yes         virtual_private=%v4:         oe=off conn DiData         authby=secret         auto=start         ike=3des-md5         esp=3des-md5         type=tunnel         left=1.2.3.4         leftsubnet=19.1.20.0/24         leftnexthop=%defaultroute         right=2.2.7.1 ...

CPU speed webpage "http://www.spec.org/cpu2006/results/cint2006.html"

1. Cpu speed is the speed from SpecInt for the cpu model and MHz being considered.  It can be obtained from the SpecInt WebSite at http://www.spec.org/cpu2006/results/cint2006.html 2. Cpu throughput is the throughput from SpecInt for the cpu model and MHz being considered.  It can be obtained from the SpecInt web site at http://www.spec.org/cpu2006/results/rint2006.html 3. For Linux the cpu model can be obtained via "cat /proc/cpuinfo".  For Windows, depending on the version, it can usually be obtained from Computer or 'My Computer' properties.  Right click on Computer or 'My Computer' to get to properties.  e.g. "Intel(R) Xeon(R) CPU X5680 @ 3.33GHz (2 processors)"

How to calculate bandwidth based on traffic.

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