If the analyzed program does not read any memory, or the reading
memory accesses are filtered out in the import step (import-trace -m),
the trace table may hold no entries for the program. This commit
makes sure the SamplingPruner and FESamplingPruner deal properly with
this situation.
Change-Id: I6bb5da23f345fa97cf8ab0b688cce5d00945249a
Analogous to the FESamplingPruner, the --no-weighting switch disables the
equivalence-class weighting by using a weight of one instead of the
equivalence-class size. This is usually not a good idea, and should only
be used for demonstration purposes, or if the fault model requires
weight-less sampling.
The --no-weighting switch was introduced with an earlier commit, but
did not have an effect until now.
Change-Id: If2ebf775bea7f2e3f8c293abbae08f1eb00cacf1
The --incremental switch allows to add more samples if the resulting
confidence intervals are not satisfactory yet.
Change-Id: I65dc99522f45f8a4eaf4ce68e832f7636585381d
The SamplingPruner implements "normal" sampling with equivalence-class
reuse. Unlike the FESamplingPruner, the SamplingPruner implements
uniform fault-space sampling that counts multiple hits of an
equivalence class.
This change modifies the database schema, more specifically it adds
the "weight" column to the fspgroup table. Update existing databases
with this query:
ALTER TABLE fspgroup ADD COLUMN weight INT UNSIGNED;
Change-Id: I668fc9b25fc4d79a60aa1ef8d69cdf5fa076cc6d
