What is iperf, jperf and xjperf? How can you use them to test network performance?
Iperf is a very helpful tool written in C++ to measure network bandwidth and quality. It can be used to analyze both TCP and UDP traffic.
Jperf or Xjperf (both of them are the same thing. Don’t confuse about the difference) equip Iperf with graphical interface. If you don’t like to spend your time by command line, use Jperf.
I am going to give you some information about Iperf and Jperf. First of all, the project links of these tools are here:
Which FTP client is better: FileZilla, CuteFTP or TotalCommander?
Most people think that FTP speed depends on server and network speed. How about FTP client? Which FTP client should you prefer If you need high speed?
Which one is the best?
I tested three FTP clients:
- FileZilla 3.5.3
- CuteFTP 8.3.2
- Total Commander 7.55
Here is test environment:
- Operating system: Windows 7 Ultimate
- FTP Server speed: 30 Mbps (download), 140 Mbps (upload)
- Network speed: 32 Mbps (download), 2 Mbps (upload)
I have tried download/upload three times and calculated average. All clients have had the same conditions. The results:
FTP clients comparison
* I used multi-part download and normal upload on CuteFTP. I used default settings on FileZilla and Total Commander.
* Passive mode was used for both download and upload (Find out more).
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As a result:
- Don’t use Total Commander! Upload speed of Total Commander is terrible!
- If you like open source programs choose FileZilla.
- If you like programs that have user-friendly interface, choose CuteFTP.
By the way, my favorite is CuteFTP!
How Google earned USD 37.9 Billion in 2011?
USD 37.9 Billion in a year! The most interesting thing is %96 of the revenue comes from Adwords. That’s why we see advertisements on whole Googles services like Gmail, Search, Documents etc.
Check this out:
Google Revenue Infographic
Excel Macro which copies one column to another by matching specific unique column
This is a simple Excel Macro which copy one column to another by comparing specific unique column. There two sheets: Sheet1 and Sheet2. We copy column 2 and 3 at Sheet2 to column 2 and 3 at Sheet1 by matching column 1 at both.
There might be persentage data. You should use NumberFormat parameter in that situation.
Sub CopyCells() '*** Defining variables ***' Dim Value1, Value2 Dim RowsCount1, RowsCount2 '*** Find out rows count ***' RowsCount1 = Worksheets("Sheet1").Range("A1").CurrentRegion.Rows.Count RowsCount2= Worksheets("Sheet2").Range("A1").CurrentRegion.Rows.Count '*** Copying data ***' For C1 = 2 To RowsCount2 ..Set Value1 = Worksheets("Sheet2").Cells(C1, 1) ..For C2 = 3 To RowsCount1 ....Set Value2 = Worksheets("Sheet1").Cells(C2, 1) ....If Value1 = Value2 Then ......Worksheets("Sheet1").Cells(C2, 2) = Worksheets("Sheet2").Cells(C1, 2) ......Worksheets("Sheet1").Cells(C2, 2).NumberFormat = "0.00%" ......Worksheets("Sheet1").Cells(C2, 3) = Worksheets("Sheet2").Cells(C1, 3) ......Worksheets("Sheet1").Cells(C2, 3).NumberFormat = "" ....End If ..Next C2 Next C1 End Sub
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C1 and C2 mean Counter1 and Counter2.
How to synchronize Google Calendar and Outlook?
If you want to sync Google Calendar and Outlook, Google Calendar Sync tool is all you need. There are 2-way and 1-way synchronizing alternatives. Try it:
http://dl.google.com/dl/googlecalendarsync/googlecalendarsync_installer.exe
Google Calendar Sync tool
If you have Google Apps for Business (I mean you pay for the service), you can use an excellent tool that name is Google Apps Sync for Outlook. It provides mail, calendar, contact, free/busy data syncronization capability.
http://www.google.com/apps/intl/en/business/outlook_sync.html
Lastly, if you bored of Outlook (How can it be possible?) and want to move whole data to Google Apps, Migration Tool is for you:
