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 4847 machines.
Average uptime: 61.3 days
Max uptime currently running: 2401.5 days
Max uptime ever observed: 3833.2 days
| Count |
Uptime |
| 798 |
0-1 days |
| 1152 |
1-10 days |
| 2078 |
10-100 days |
| 800 |
More than 100 days |
Top ten long-running machines
| Uptime |
Kernel |
CPU |
| 2401.5 |
2.2.13-7mdk |
Cyrix 486 |
| 2280.5 |
2.6.13-15.16-default |
AMD Athlon |
| 1510.0 |
2.4.18-14smp |
Intel Pentium III |
| 1356.2 |
2.6.8-1.521smp |
Intel Pentium III |
| 1214.8 |
2.4.27-thor-586 |
Intel Pentium |
| 1198.4 |
2.4.29 |
Intel Pentium4 |
| 1196.8 |
2.6.9-1.667 |
AMD Unknown |
| 1195.0 |
2.6.10-gentoo-r6 |
AMD Duron |
| 1116.3 |
2.4.18-18.7.x |
AMD Duron |
| 1108.3 |
2.2.14-6.0 |
Alpha LCA4 |
|
Average uptime, by kernel
| Count |
Kernel |
Uptime |
| Typical |
Longest |
| 8 |
2.2.14 |
395.1 |
1108.3 |
0.2% |
| 10 |
2.2.16 |
69.0 |
248.5 |
0.2% |
| 3 |
2.2.16C37_III |
202.6 |
434.1 |
0.1% |
| 3 |
2.2.17 |
52.1 |
67.9 |
0.1% |
| 4 |
2.2.19 |
235.3 |
687.1 |
0.1% |
| 5 |
2.2.20 |
87.0 |
172.2 |
0.1% |
| 6 |
2.2.25 |
75.2 |
187.7 |
0.1% |
| 3 |
2.2.26 |
188.0 |
411.3 |
0.1% |
| 4 |
2.4.10 |
120.2 |
216.8 |
0.1% |
| 3 |
2.4.17 |
287.9 |
500.6 |
0.1% |
| 48 |
2.4.18 |
204.2 |
1510.0 |
1.0% |
| 16 |
2.4.19 |
164.5 |
629.9 |
0.3% |
| 4 |
2.4.2 |
241.4 |
660.0 |
0.1% |
| 101 |
2.4.20 |
71.7 |
460.7 |
2.1% |
| 76 |
2.4.21 |
112.5 |
1095.9 |
1.6% |
| 33 |
2.4.22 |
95.1 |
333.1 |
0.7% |
| 5 |
2.4.23 |
160.8 |
733.5 |
0.1% |
| 5 |
2.4.24 |
121.9 |
326.5 |
0.1% |
| 10 |
2.4.25 |
73.9 |
200.2 |
0.2% |
| 48 |
2.4.26 |
103.1 |
646.5 |
1.0% |
| 68 |
2.4.27 |
169.2 |
1214.8 |
1.4% |
| 15 |
2.4.28 |
186.9 |
785.5 |
0.3% |
| 18 |
2.4.29 |
133.1 |
1198.4 |
0.4% |
| 7 |
2.4.30 |
99.5 |
305.2 |
0.1% |
| 33 |
2.4.31 |
83.8 |
277.3 |
0.7% |
| 3 |
2.4.31SMP |
37.7 |
39.3 |
0.1% |
| 22 |
2.4.32 |
102.0 |
380.4 |
0.5% |
| 25 |
2.4.33.3 |
84.3 |
341.1 |
0.5% |
| 9 |
2.4.34 |
86.4 |
257.1 |
0.2% |
| 3 |
2.4.34.1 |
85.0 |
144.9 |
0.1% |
| 3 |
2.4.34.4 |
55.4 |
111.3 |
0.1% |
| 3 |
2.4.35 |
66.1 |
104.5 |
0.1% |
| 4 |
2.4.35.3 |
62.1 |
109.9 |
0.1% |
| 3 |
2.4.35.4 |
0.2 |
0.3 |
0.1% |
| 5 |
2.4.36 |
45.9 |
104.3 |
0.1% |
| 5 |
2.4.4 |
16.2 |
45.7 |
0.1% |
| 8 |
2.4.7 |
72.9 |
355.6 |
0.2% |
| 3 |
2.4.9 |
208.0 |
326.9 |
0.1% |
| 31 |
2.6.10 |
124.1 |
1195.0 |
0.6% |
| 25 |
2.6.11 |
161.0 |
823.9 |
0.5% |
| 40 |
2.6.11.4 |
109.5 |
785.5 |
0.8% |
| 4 |
2.6.11.6 |
107.2 |
195.3 |
0.1% |
| 4 |
2.6.11.9 |
266.0 |
768.5 |
0.1% |
| 67 |
2.6.12 |
109.3 |
729.3 |
1.4% |
| 3 |
2.6.12.2 |
267.3 |
800.3 |
0.1% |
| 51 |
2.6.13 |
110.8 |
2280.5 |
1.1% |
| 3 |
2.6.13.1 |
39.8 |
58.1 |
0.1% |
| 13 |
2.6.14 |
149.4 |
835.1 |
0.3% |
| 3 |
2.6.14.3 |
32.0 |
82.4 |
0.1% |
| 97 |
2.6.15 |
99.8 |
613.0 |
2.0% |
| 4 |
2.6.15.2 |
26.9 |
67.3 |
0.1% |
| 3 |
2.6.15.4 |
204.5 |
499.1 |
0.1% |
| 47 |
2.6.16 |
110.3 |
772.5 |
1.0% |
| 8 |
2.6.16.13 |
32.5 |
80.0 |
0.2% |
| 3 |
2.6.16.18 |
458.6 |
689.7 |
0.1% |
| 3 |
2.6.16.19 |
15.4 |
43.3 |
0.1% |
| 3 |
2.6.16.20 |
54.6 |
99.0 |
0.1% |
| 13 |
2.6.16.21 |
88.6 |
408.8 |
0.3% |
| 12 |
2.6.16.27 |
86.1 |
333.7 |
0.2% |
| 7 |
2.6.16.29 |
106.3 |
396.5 |
0.1% |
| 6 |
2.6.16.33 |
123.8 |
221.3 |
0.1% |
| 4 |
2.6.16.38 |
37.6 |
104.5 |
0.1% |
| 18 |
2.6.16.46 |
29.3 |
125.0 |
0.4% |
| 5 |
2.6.16.53 |
45.2 |
153.9 |
0.1% |
| 15 |
2.6.16.54 |
29.4 |
88.8 |
0.3% |
| 3 |
2.6.16.57 |
24.1 |
26.5 |
0.1% |
| 5 |
2.6.16.60 |
38.6 |
82.9 |
0.1% |
| 121 |
2.6.17 |
68.8 |
677.9 |
2.5% |
| 4 |
2.6.17.1 |
66.3 |
136.0 |
0.1% |
| 13 |
2.6.17.13 |
71.7 |
275.9 |
0.3% |
| 3 |
2.6.17.7 |
183.1 |
378.4 |
0.1% |
| 6 |
2.6.17.8 |
67.8 |
118.5 |
0.1% |
| 690 |
2.6.18 |
48.7 |
487.2 |
14.2% |
| 5 |
2.6.18.1 |
64.4 |
302.6 |
0.1% |
| 17 |
2.6.18.2 |
178.4 |
517.8 |
0.4% |
| 68 |
2.6.18.8 |
29.3 |
189.7 |
1.4% |
| 27 |
2.6.19 |
84.6 |
406.0 |
0.6% |
| 5 |
2.6.19.1 |
151.9 |
509.8 |
0.1% |
| 12 |
2.6.19.2 |
116.1 |
443.5 |
0.2% |
| 4 |
2.6.19.7 |
95.4 |
239.9 |
0.1% |
| 159 |
2.6.20 |
52.4 |
408.8 |
3.3% |
| 3 |
2.6.20.1 |
70.0 |
152.3 |
0.1% |
| 6 |
2.6.20.3 |
126.6 |
317.5 |
0.1% |
| 3 |
2.6.20.4 |
21.8 |
64.1 |
0.1% |
| 34 |
2.6.21 |
104.0 |
331.0 |
0.7% |
| 9 |
2.6.21.1 |
17.3 |
68.7 |
0.2% |
| 5 |
2.6.21.3 |
75.4 |
193.2 |
0.1% |
| 47 |
2.6.21.5 |
36.8 |
282.5 |
1.0% |
| 385 |
2.6.22 |
27.2 |
279.0 |
7.9% |
| 6 |
2.6.22.1 |
54.1 |
291.7 |
0.1% |
| 5 |
2.6.22.12 |
29.1 |
76.0 |
0.1% |
| 5 |
2.6.22.13 |
42.8 |
144.3 |
0.1% |
| 51 |
2.6.22.14 |
29.6 |
116.1 |
1.1% |
| 4 |
2.6.22.15 |
46.6 |
103.8 |
0.1% |
| 3 |
2.6.22.16 |
37.7 |
86.8 |
0.1% |
| 89 |
2.6.22.17 |
12.8 |
86.0 |
1.8% |
| 14 |
2.6.22.18 |
20.8 |
85.1 |
0.3% |
| 4 |
2.6.22.19 |
13.7 |
42.9 |
0.1% |
| 6 |
2.6.22.2 |
23.9 |
68.4 |
0.1% |
| 3 |
2.6.22.3 |
24.6 |
44.6 |
0.1% |
| 15 |
2.6.22.5 |
25.3 |
151.2 |
0.3% |
| 3 |
2.6.22.6 |
76.0 |
175.1 |
0.1% |
| 3 |
2.6.22.7 |
33.2 |
71.8 |
0.1% |
| 22 |
2.6.22.9 |
27.5 |
124.5 |
0.5% |
| 107 |
2.6.23 |
36.8 |
212.6 |
2.2% |
| 23 |
2.6.23.1 |
59.1 |
174.1 |
0.5% |
| 16 |
2.6.23.12 |
41.0 |
106.6 |
0.3% |
| 3 |
2.6.23.12.080410 |
12.7 |
15.5 |
0.1% |
| 3 |
2.6.23.13 |
41.8 |
108.4 |
0.1% |
| 20 |
2.6.23.14 |
52.5 |
112.6 |
0.4% |
| 64 |
2.6.23.15 |
22.2 |
86.4 |
1.3% |
| 12 |
2.6.23.16 |
30.8 |
85.3 |
0.2% |
| 9 |
2.6.23.17 |
9.7 |
44.6 |
0.2% |
| 3 |
2.6.23.8 |
90.3 |
138.4 |
0.1% |
| 6 |
2.6.23.9 |
42.2 |
161.7 |
0.1% |
| 454 |
2.6.24 |
9.1 |
126.6 |
9.4% |
| 3 |
2.6.24.1 |
46.2 |
85.1 |
0.1% |
| 47 |
2.6.24.2 |
30.6 |
88.6 |
1.0% |
| 5 |
2.6.24.2dedibox |
35.8 |
85.7 |
0.1% |
| 87 |
2.6.24.3 |
15.9 |
138.6 |
1.8% |
| 124 |
2.6.24.4 |
11.7 |
43.4 |
2.6% |
| 80 |
2.6.24.5 |
4.2 |
10.0 |
1.7% |
| 100 |
2.6.25 |
6.7 |
26.5 |
2.1% |
| 21 |
2.6.25.1 |
3.2 |
6.7 |
0.4% |
| 6 |
2.6.25.3 |
0.4 |
1.4 |
0.1% |
| 4 |
2.6.3 |
68.2 |
92.2 |
0.1% |
| 6 |
2.6.4 |
23.1 |
78.1 |
0.1% |
| 46 |
2.6.5 |
145.2 |
630.3 |
0.9% |
| 12 |
2.6.7 |
58.1 |
130.6 |
0.2% |
| 148 |
2.6.8 |
102.8 |
1356.2 |
3.1% |
| 9 |
2.6.8.1 |
196.9 |
686.4 |
0.2% |
| 236 |
2.6.9 |
82.3 |
1196.8 |
4.9% |
| Others |
330 |
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!