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Commit 653316ad authored by Mark Salyzyn's avatar Mark Salyzyn
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logd: pruning time horizon 

Estimate a time horizon of ten fold for worst UID pruning

Bug: 25453210
Bug: 24782000
Change-Id: I7118deb6d42531c68ed2ac2a59c57b0580b942cc
parent 69406d90

logd/LogBuffer.cpp

+4 −1
Original line number Diff line number Diff line
@@ -435,7 +435,10 @@ void LogBuffer::prune(log_id_t id, unsigned long pruneRows, uid_t caller_uid) { 
                    worst_sizes = sorted[0]->getSizes();

                    // Calculate threshold as 12.5% of available storage

                    size_t threshold = log_buffer_size(id) / 8;

                    if (worst_sizes > threshold) {

                    if ((worst_sizes > threshold)

                        // Allow time horizon to extend roughly tenfold, assume

                        // average entry length is 100 characters.

                            && (worst_sizes > (10 * sorted[0]->getDropped()))) {

                        worst = sorted[0]->getKey();

                        second_worst_sizes = sorted[1]->getSizes();

                        if (second_worst_sizes < threshold) {