Andi Kleen notes that: | Tunables are basically "we give up, let's push the problem to the user" | which is not nice. I suspect a lot of users won't even know if their | workloads are bursty or not. Or they might have workloads which are | both bursty and not bursty. Tunables are also something for external daemons to change: the famous example is the IBM z/OS Workload Manager (WLM), which looks at application (actually workload) progress and a table of requirements and adjusts CPU, IO and memory tunables to speed to slow the workload. --dave
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