Machine uptimes
The data below is based on the currently available data from the
machine-update scripts that are run by a lot of machines.
Only data from machines that have updated within the last 60
days is included.
Information from 4577 machines.
Average uptime: 62.0 days
Max uptime currently running: 2450.5 days
Max uptime ever observed: 3833.2 days
| Count |
Uptime |
| 719 |
0-1 days |
| 1116 |
1-10 days |
| 1945 |
10-100 days |
| 777 |
More than 100 days |
Top ten long-running machines
| Uptime |
Kernel |
CPU |
| 2450.5 |
2.2.13-7mdk |
Cyrix 486 |
| 1559.0 |
2.4.18-14smp |
Intel Pentium III |
| 1398.2 |
2.6.8-1.521smp |
Intel Pentium III |
| 1263.8 |
2.4.27-thor-586 |
Intel Pentium |
| 1254.4 |
2.4.29 |
Intel Pentium4 |
| 1245.8 |
2.6.9-1.667 |
AMD Unknown |
| 1244.0 |
2.6.10-gentoo-r6 |
AMD Duron |
| 1172.3 |
2.4.18-18.7.x |
AMD Duron |
| 1158.3 |
2.2.14-6.0 |
Alpha LCA4 |
| 1158.3 |
2.2.14-6.0 |
Alpha LCA4 |
|
Average uptime, by kernel
| Count |
Kernel |
Uptime |
| Typical |
Longest |
| 7 |
2.0.38 |
36.9 |
61.1 |
0.2% |
| 8 |
2.2.14 |
358.9 |
1158.3 |
0.2% |
| 9 |
2.2.16 |
90.2 |
304.5 |
0.2% |
| 3 |
2.2.16C37_III |
88.1 |
182.0 |
0.1% |
| 3 |
2.2.17 |
105.7 |
123.9 |
0.1% |
| 4 |
2.2.19 |
250.3 |
715.2 |
0.1% |
| 3 |
2.2.20 |
140.4 |
221.2 |
0.1% |
| 6 |
2.2.25 |
105.4 |
243.7 |
0.1% |
| 3 |
2.2.26 |
223.0 |
411.3 |
0.1% |
| 4 |
2.4.10 |
158.7 |
272.8 |
0.1% |
| 3 |
2.4.17 |
329.9 |
549.6 |
0.1% |
| 45 |
2.4.18 |
224.7 |
1559.0 |
1.0% |
| 15 |
2.4.19 |
117.5 |
671.9 |
0.3% |
| 4 |
2.4.2 |
56.3 |
177.5 |
0.1% |
| 93 |
2.4.20 |
72.2 |
475.2 |
2.0% |
| 64 |
2.4.21 |
133.7 |
1151.9 |
1.4% |
| 30 |
2.4.22 |
112.3 |
389.1 |
0.7% |
| 5 |
2.4.23 |
181.0 |
789.5 |
0.1% |
| 6 |
2.4.24 |
112.6 |
382.5 |
0.1% |
| 8 |
2.4.25 |
83.1 |
256.2 |
0.2% |
| 43 |
2.4.26 |
118.5 |
695.5 |
0.9% |
| 55 |
2.4.27 |
152.0 |
1263.8 |
1.2% |
| 13 |
2.4.28 |
171.4 |
829.1 |
0.3% |
| 18 |
2.4.29 |
151.2 |
1254.4 |
0.4% |
| 6 |
2.4.30 |
78.7 |
317.7 |
0.1% |
| 28 |
2.4.31 |
70.6 |
306.1 |
0.6% |
| 3 |
2.4.31SMP |
16.9 |
19.5 |
0.1% |
| 16 |
2.4.32 |
114.5 |
429.4 |
0.3% |
| 21 |
2.4.33.3 |
105.3 |
397.1 |
0.5% |
| 7 |
2.4.34 |
107.7 |
306.1 |
0.2% |
| 3 |
2.4.34.1 |
14.0 |
25.7 |
0.1% |
| 3 |
2.4.34.4 |
70.9 |
160.3 |
0.1% |
| 3 |
2.4.35.3 |
107.7 |
158.9 |
0.1% |
| 5 |
2.4.36 |
88.3 |
160.3 |
0.1% |
| 3 |
2.4.4 |
30.4 |
57.8 |
0.1% |
| 7 |
2.4.7 |
75.4 |
404.6 |
0.2% |
| 4 |
2.4.9 |
232.0 |
382.9 |
0.1% |
| 29 |
2.6.10 |
137.3 |
1244.0 |
0.6% |
| 22 |
2.6.11 |
173.4 |
879.9 |
0.5% |
| 39 |
2.6.11.4 |
99.6 |
838.5 |
0.9% |
| 3 |
2.6.11.6 |
34.8 |
47.1 |
0.1% |
| 5 |
2.6.11.9 |
243.1 |
782.5 |
0.1% |
| 62 |
2.6.12 |
115.2 |
785.3 |
1.4% |
| 46 |
2.6.13 |
59.0 |
336.6 |
1.0% |
| 3 |
2.6.13.1 |
68.0 |
114.1 |
0.1% |
| 10 |
2.6.14 |
236.6 |
884.1 |
0.2% |
| 96 |
2.6.15 |
103.4 |
662.0 |
2.1% |
| 4 |
2.6.15.2 |
58.1 |
128.8 |
0.1% |
| 36 |
2.6.16 |
130.3 |
821.5 |
0.8% |
| 8 |
2.6.16.13 |
31.1 |
86.0 |
0.2% |
| 3 |
2.6.16.18 |
272.2 |
737.4 |
0.1% |
| 3 |
2.6.16.20 |
44.2 |
111.0 |
0.1% |
| 10 |
2.6.16.21 |
94.1 |
461.8 |
0.2% |
| 11 |
2.6.16.27 |
105.7 |
386.7 |
0.2% |
| 9 |
2.6.16.29 |
132.1 |
452.5 |
0.2% |
| 6 |
2.6.16.33 |
72.7 |
155.9 |
0.1% |
| 4 |
2.6.16.38 |
14.9 |
35.5 |
0.1% |
| 15 |
2.6.16.46 |
17.5 |
98.7 |
0.3% |
| 5 |
2.6.16.53 |
91.0 |
209.9 |
0.1% |
| 14 |
2.6.16.54 |
25.7 |
77.0 |
0.3% |
| 3 |
2.6.16.57 |
54.4 |
82.5 |
0.1% |
| 4 |
2.6.16.60 |
51.2 |
90.1 |
0.1% |
| 103 |
2.6.17 |
78.8 |
733.9 |
2.3% |
| 14 |
2.6.17.13 |
62.6 |
324.9 |
0.3% |
| 3 |
2.6.17.7 |
204.1 |
378.4 |
0.1% |
| 4 |
2.6.17.8 |
104.2 |
174.5 |
0.1% |
| 679 |
2.6.18 |
46.2 |
543.2 |
14.8% |
| 7 |
2.6.18.1 |
36.4 |
125.0 |
0.2% |
| 18 |
2.6.18.2 |
126.9 |
573.8 |
0.4% |
| 59 |
2.6.18.8 |
39.4 |
240.9 |
1.3% |
| 22 |
2.6.19 |
95.0 |
455.0 |
0.5% |
| 4 |
2.6.19.1 |
204.7 |
565.8 |
0.1% |
| 9 |
2.6.19.2 |
129.0 |
492.5 |
0.2% |
| 4 |
2.6.19.7 |
105.2 |
288.9 |
0.1% |
| 119 |
2.6.20 |
42.6 |
447.2 |
2.6% |
| 3 |
2.6.20.1 |
85.3 |
208.3 |
0.1% |
| 33 |
2.6.20.21 |
154.7 |
166.8 |
0.7% |
| 6 |
2.6.20.3 |
84.6 |
278.0 |
0.1% |
| 34 |
2.6.21 |
103.8 |
382.9 |
0.7% |
| 9 |
2.6.21.1 |
10.1 |
48.3 |
0.2% |
| 5 |
2.6.21.3 |
26.6 |
52.2 |
0.1% |
| 37 |
2.6.21.5 |
42.6 |
338.5 |
0.8% |
| 224 |
2.6.22 |
34.3 |
275.7 |
4.9% |
| 5 |
2.6.22.1 |
12.9 |
46.4 |
0.1% |
| 4 |
2.6.22.13 |
74.7 |
200.3 |
0.1% |
| 59 |
2.6.22.14 |
27.7 |
150.9 |
1.3% |
| 4 |
2.6.22.15 |
61.4 |
159.8 |
0.1% |
| 4 |
2.6.22.16 |
46.7 |
142.8 |
0.1% |
| 62 |
2.6.22.17 |
16.7 |
118.6 |
1.4% |
| 26 |
2.6.22.18 |
17.8 |
134.1 |
0.6% |
| 9 |
2.6.22.19 |
7.9 |
24.2 |
0.2% |
| 3 |
2.6.22.3 |
26.9 |
51.6 |
0.1% |
| 11 |
2.6.22.5 |
20.5 |
72.8 |
0.2% |
| 3 |
2.6.22.6 |
30.7 |
53.6 |
0.1% |
| 3 |
2.6.22.7 |
10.7 |
21.3 |
0.1% |
| 15 |
2.6.22.9 |
40.4 |
167.4 |
0.3% |
| 74 |
2.6.23 |
43.7 |
261.6 |
1.6% |
| 19 |
2.6.23.1 |
83.9 |
223.1 |
0.4% |
| 3 |
2.6.23.11 |
38.8 |
90.0 |
0.1% |
| 10 |
2.6.23.12 |
49.7 |
155.6 |
0.2% |
| 3 |
2.6.23.12.080410 |
23.7 |
28.0 |
0.1% |
| 9 |
2.6.23.14 |
28.6 |
145.0 |
0.2% |
| 14 |
2.6.23.15 |
23.3 |
142.4 |
0.3% |
| 7 |
2.6.23.16 |
35.1 |
141.3 |
0.2% |
| 36 |
2.6.23.17 |
14.9 |
58.7 |
0.8% |
| 3 |
2.6.23.8 |
146.3 |
194.4 |
0.1% |
| 6 |
2.6.23.9 |
55.6 |
210.7 |
0.1% |
| 508 |
2.6.24 |
13.4 |
140.2 |
11.1% |
| 31 |
2.6.24.2 |
47.3 |
141.4 |
0.7% |
| 8 |
2.6.24.2dedibox |
61.6 |
134.7 |
0.2% |
| 23 |
2.6.24.3 |
41.0 |
116.8 |
0.5% |
| 35 |
2.6.24.4 |
24.0 |
87.3 |
0.8% |
| 56 |
2.6.24.5 |
11.2 |
63.8 |
1.2% |
| 38 |
2.6.24.7 |
14.8 |
46.2 |
0.8% |
| 177 |
2.6.25 |
13.2 |
71.8 |
3.9% |
| 7 |
2.6.25.1 |
15.6 |
45.3 |
0.2% |
| 19 |
2.6.25.3 |
11.7 |
46.4 |
0.4% |
| 63 |
2.6.25.4 |
11.3 |
45.0 |
1.4% |
| 23 |
2.6.25.5 |
2.2 |
24.1 |
0.5% |
| 96 |
2.6.25.6 |
5.5 |
22.3 |
2.1% |
| 15 |
2.6.25.7 |
6.6 |
13.9 |
0.3% |
| 8 |
2.6.25.8 |
2.9 |
8.7 |
0.2% |
| 22 |
2.6.25.9 |
1.8 |
8.4 |
0.5% |
| 16 |
2.6.26 |
4.7 |
18.6 |
0.3% |
| 3 |
2.6.3 |
19.6 |
29.0 |
0.1% |
| 6 |
2.6.4 |
36.8 |
127.1 |
0.1% |
| 42 |
2.6.5 |
160.0 |
682.1 |
0.9% |
| 12 |
2.6.7 |
79.0 |
186.6 |
0.3% |
| 138 |
2.6.8 |
124.4 |
1398.2 |
3.0% |
| 9 |
2.6.8.1 |
108.0 |
418.1 |
0.2% |
| 229 |
2.6.9 |
85.7 |
1245.8 |
5.0% |
| Others |
310 |
6.8% |
|
NOTE:
The Linux kernel (at least up to 2.4.2) has a flaw: It computes the result of the "uptime" based on the internal "jiffies" counter, which counts the time since boot, in units of 10 milliseconds.
This is typecast as an "unsigned long" - on the Intel boxes, that's an unsigned 32-bit number.
Well, it turns out that in a 32-bit number, you can store 497.1 days before the number wraps. So all the numbers higher than this on this list are because:
- They are not Intel architectures
- They have sent in updates on both sides of the wrap, and my scripts have successfully correlated them and concluded that it was a wrap, not a reboot.
Thanks to Brian "Z" Frappier for alerting me to the problem!