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From 王凯 <wjk860...@163.com>
Subject HBase read performance
Date Tue, 11 Nov 2008 08:36:16 GMT
hello, every one. i used to test the performance in PE, but the performance is not well enough.
especially, the table format is not as what i need. so, i create a table and write some string
in every cell. then, i use the count , the count time is the count_1 time. after all, i count
all the tables again, the count time is the count_2 time. count_2 time is almost half of the
count_1 time!

i do not know why this happened, perhaps cache?

column 	row 	  cell 	write  	count_1  	count_2 
10	     10000	   10B 	 17.2        13.5	         7.2
10	     10000	   50B 	 17	        13.1	         7.3
10	     10000	   200B     19.7	        13.6	         7.6
10	   100000	  10B 	128.4	131.5	74.7
10	   100000	  50B 	134.6	143.1	66.2
10	   100000	  200B      138.1	100.1	77.3



	
	
		
			
		
	


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