Decide an appropriate subbuffer size for per-uid UST buffers
Currently, per-uid buffers use the same default subbuffer size as per-pid buffers, but it does not make sense to use this value, since the reason for having small per-pid buffers (that we have typically many pids in a system) does not apply to per-uid buffers.
Updated by David Goulet over 8 years ago
- Status changed from New to Confirmed
Any suggestions ?
It depends on so much "unknown" variables such as the throughput, number of apps, number of events, ...
We can go 4 or 8 times bigger? Tbh, either a wild guest or we do a survey to our users. :)
Updated by Anonymous over 8 years ago
Mathieu Desnoyers wrote:
I'm tempted to derive the size based on the values we use for kernel tracing, and divide that value e.g. by 2, assuming we can have typically up to 2 users tracing in a system.
This would make sense for defining the default value. However, would it be a separate entry in defaults.h?