Bidule0hm
Server Electronics Sorcerer
- Joined
- Aug 5, 2013
- Messages
- 3,710
I open this thread to avoid cluttering the original thread on the ARC stats with the questions about the ARC health :)
You can post your ARC stats on the other thread and put a link to it here with your questions, or you can post your stats on both but, please, don't ask your questions on the other thread as it's only for sharing your stats, thanks ;)
Please remember that it's stats analysis and that every server and use case is different so it's an art as much as a science. Only you can know if your perfs are ok or not, regardless of the ARC (or other) stats.
Some facts:
You can post your ARC stats on the other thread and put a link to it here with your questions, or you can post your stats on both but, please, don't ask your questions on the other thread as it's only for sharing your stats, thanks ;)
Please remember that it's stats analysis and that every server and use case is different so it's an art as much as a science. Only you can know if your perfs are ok or not, regardless of the ARC (or other) stats.
Some facts:
- The ARC can takes days (and even weeks with light loads) to warm-up.
- The Hit ratio should be over 90 %, if it's lower then your ARC might be too small and if it's under 85 % then you can be pretty sure your ARC is too small.
- The Hit MFU:MRU ratio should be over 10:1 (and ideally over 100:1), if it's lower then your ARC might be too small and if it's under about 1:1 then you can be pretty sure your ARC is too small.
- If your ARC stats are worse and worse during the warm-up (especially the Hit ratio) your ARC is probably too small.
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