| 1 |
> OK, how about I enable a 512MB swap file and keep an eye on it. As |
| 2 |
> long as I'm not using more than 200MB, I'm not suffering from disk |
| 3 |
> swap slowdown, right? |
| 4 |
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| 5 |
Its more how much i/o rather than the size. If you have a bunch of |
| 6 |
stuff swapped out, but it hardly ever needs to be swapped in, the |
| 7 |
impact will be low. |
| 8 |
|
| 9 |
Keep an eye on the use with vmstat; |
| 10 |
|
| 11 |
adam@rix ~ $ vmstat 5 |
| 12 |
procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu---- |
| 13 |
r b swpd free buff cache si so bi bo in cs us sy id wa |
| 14 |
0 0 56700 351244 79564 207848 0 0 3 3 11 7 1 0 99 0 |
| 15 |
0 0 56700 351244 79564 207848 0 0 0 8 52 27 0 0 100 0 |
| 16 |
0 0 56700 351244 79564 207848 0 0 0 0 45 14 0 0 100 0 |
| 17 |
0 0 56700 351244 79564 207848 0 0 0 0 47 17 0 0 100 0 |
| 18 |
|
| 19 |
from the man page; |
| 20 |
Swap |
| 21 |
si: Amount of memory swapped in from disk (/s). |
| 22 |
so: Amount of memory swapped to disk (/s). |
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