tree 60ea28b99ad26d93af0c5b62f9858e814856da5d
parent 0b052419ae7400f5e4be0329e7108a25d22816b0
author yawanng <yawanng@google.com> 1606263093 +0000
committer yawanng <yawanng@google.com> 1606363007 +0000

iorap: Add a cap on the prefetch data size.

The default cap is 100MB and could be set via system property.
If the prefetch bytes exceeds 100MB, prefetching will stop.

It seems little affect based on the benchmarking results
https://dashboards.corp.google.com/_f31ff276_6cb2_4ed6_973b_9640c4fb0df4?fb=BootImageProfileId:eq:2932

Bug: 174192870
Test: Run iorap, set the cap and check the log

Change-Id: Id87a4307d4480610d623a7f197b2b46049a39d6b