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David Chen holys

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holys / recurse_mkdir.sh
Created September 22, 2014 02:46
rm -rf 1
start=$(date +%s)
for i in {1..10}
do
for j in {1..10}
do
for k in {1..10}
do
for l in {1..10}
@holys
holys / set.go
Created August 31, 2014 12:20
// from: http://se77en.cc/2014/06/30/array-slice-map-and-set-in-golang/
package main
import(
"fmt"
"sync"
)
type Set struct {
@holys
holys / wait.go
Last active August 29, 2015 14:05
package main
import "fmt"
import "sync"
var wg sync.WaitGroup
@holys
holys / cpumem_rocksdb.txt
Created August 30, 2014 02:08
Gledis-server -config=rocksdb.conf
2014/08/29 17:58:20
%CPU %MEM
163.5 2.9
2014/08/29 17:58:30
%CPU %MEM
231.4 3.7
@holys
holys / io_rocksdb.txt
Created August 30, 2014 02:07
disk0 disk1
KB/t tps MB/s KB/t tps MB/s
50.80 291 14.44 45.57 13 0.59
235.90 309 71.18 0.00 0 0.00
36.24 186 6.57 0.00 0 0.00
57.00 157 8.74 0.00 0 0.00
34.51 157 5.31 0.00 0 0.00
54.52 161 8.57 0.00 0 0.00
29.61 221 6.38 0.00 0 0.00
21.08 275 5.67 8.00 0 0.00
@holys
holys / report_rocksdb.txt
Created August 30, 2014 02:06
##########rocksdb############
1000w
zadd: 13724.23 requests per second; consumed 728.638582 seconds
set: 24813.78 requests per second; consumed 403.001838 seconds
%CPU %MEM
195.7 8.2
disk0 disk1 cpu load average
KB/t tps MB/s KB/t tps MB/s us sy id 1m 5m 15m
30.16 24 0.70 275.70 24 6.51 21 28 52 5.63 6.57 5.47
@holys
holys / cpumem_level.txt
Created August 29, 2014 07:22
ledis-server -config=leveldb.conf
2014/08/29 10:29:35
%CPU %MEM
99.6 14.9
ledis-server -config=leveldb.conf
2014/08/29 10:29:38
%CPU %MEM
147.1 15.5
@holys
holys / report_level.txt
Created August 29, 2014 06:39
##########leveldb############
1000w
zadd: 15115.15 requests per second; consumed 661.587707 seconds
set: 26421.16 requests per second; consumed 378.484582 seconds
%CPU %MEM
198.5 3.2
disk0 disk1 cpu load average
KB/t tps MB/s KB/t tps MB/s us sy id 1m 5m 15m
158.20 106 16.31 175.10 21 3.54 31 37 32 9.45 8.45 7.09
@holys
holys / io_level.txt
Created August 29, 2014 06:23
disk0 disk1
KB/t tps MB/s KB/t tps MB/s
31.33 33 1.01 157.69 11 1.62
14.02 13 0.18 175.46 17 2.91
0.00 0 0.00 768.00 1 0.60
15.82 24 0.37 910.22 2 1.60
13.71 1 0.02 819.20 2 1.60
4.00 0 0.00 831.72 9 6.98
55.10 8 0.43 910.22 2 1.60
18.89 46 0.84 169.22 21 3.40
@holys
holys / latency.txt
Created August 28, 2014 07:13 — forked from jboner/latency.txt
Latency Comparison Numbers
--------------------------
L1 cache reference 0.5 ns
Branch mispredict 5 ns
L2 cache reference 7 ns 14x L1 cache
Mutex lock/unlock 25 ns
Main memory reference 100 ns 20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy 3,000 ns
Send 1K bytes over 1 Gbps network 10,000 ns 0.01 ms
Read 4K randomly from SSD* 150,000 ns 0.15 ms