node + redis tests

Concurrency  hello_world    incr        ratio(b/c)
1	   1969.57 	    1033.73 	1.91
2	    5570.07 	    2103.45 	2.65
3	    9331.06 	    4217.50 	2.21
4	    11196.09 	    5962.03 	1.88
5	    12057.49 	    7240.00 	1.67
6	    12252.72 	    7774.29 	1.58
7	    12400.64 	    8571.86 	1.45
8	    12528.70 	    8753.54 	1.43
9	    12352.01 	    8653.64 	1.43
10	    12488.23 	    8889.56 	1.4
11	    12368.02 	    8895.12 	1.39
12	    12460.74 	    9112.08 	1.37
13	    12264.93 	    9175.18 	1.34
14	    12511.99 	    9372.37 	1.33
15	    12566.94 	    9403.47 	1.34
16	    12373.88 	    9586.88 	1.29
17	    12474.62 	    9639.16 	1.29
18	    12683.96 	    9652.40 	1.31
19	    12501.72 	    9750.54 	1.28
20	    12326.33 	    9710.76 	1.27
40	    12765.48 	    10149.51 	1.26
60	    10810.37 	    10006.15 	1.08
80	    10505.81 	    9465.42 	1.11
100	    10379.73 	    9122.51 	1.14
120	    10277.44 	    9049.43 	1.14
140	    10313.16 	    8867.09 	1.16
160	    10249.41 	    7680.39 	1.33
180	    10311.42 	    7330.16 	1.41
200	    10263.01 	    8531.61 	1.2
300	    10129.64 	    8156.30 	1.24
400	    10159.73 	    8274.58 	1.23
500	    10103.64 	    8174.54 	1.24
600	    9763.89 	    8030.07 	1.22
700	    9755.02 	    8110.96 	1.2
800	    9770.43 	    8005.60 	1.22
900	    9385.55 	    7685.81 	1.22
1000	    9338.58 	    7608.94 	1.23
1100	    8916.63 	    7588.60 	1.18
1200	    9156.32 	    7529.70 	1.22
1300	    8832.70 	    7253.92 	1.22
1400	    8668.89 	    7232.40 	1.2
1500	    8782.59 	    6943.16 	1.26
1600	    8752.36 	    7496.84 	1.17
1700	    8351.81 	    7226.10 	1.16
1800	    8419.14 	    6898.83 	1.22
1900	    8634.79 	    7196.15 	1.2
2000	    8412.79 	    6821.91 	1.23
2100	    8676.54 	    6947.01 	1.25
2200	    8491.94 		
2300	    8658.44 	    6829.63 	1.27
2400	    8581.17 	    6987.25 	1.23
2500	    8599.80 	    6996.77 	1.23
2600	    8435.91 	    7030.97 	1.2
2700	    8506.29 	    6911.29 	1.23
2800	    8396.29 	    6985.23 	1.2
2900	    8464.53 	    6956.16 	1.22
3000	    8622.92 	    6899.53 	1.25
3100	    8201.50 	    6679.04 	1.23
3200	    8552.10 	    7069.74 	1.21
3300	    8221.73 	    6617.98 	1.24
3400	    8613.48 	    6650.99 	1.3
3500	    8634.26 	    6621.97 	1.3
3600	    8429.02 	    6804.14 	1.24
3700	    8384.67 	    6776.41 	1.24
3800	    8267.49 	    6549.84 	1.26
3900	    8439.20 	    6848.40 	1.23
4000	    8555.78 	    6786.58 	1.26
6000	    8021.11 	    6385.36 	1.26
8000		    5316.24