am c5482138: am ea56594c: Merge "logd: sizes > 1M prune in smaller batches"
* commit 'c54821388d685eff70a466cb01b2e8bb3e6c98fe':
logd: sizes > 1M prune in smaller batches
diff --git a/logd/LogBuffer.cpp b/logd/LogBuffer.cpp
index 0f5071b..b9e8973 100644
--- a/logd/LogBuffer.cpp
+++ b/logd/LogBuffer.cpp
@@ -218,18 +218,25 @@
}
// If we're using more than 256K of memory for log entries, prune
-// at least 10% of the log entries.
+// at least 10% of the log entries. For sizes above 1M, prune at
+// least 1% of the log entries.
//
// mLogElementsLock must be held when this function is called.
void LogBuffer::maybePrune(log_id_t id) {
size_t sizes = stats.sizes(id);
- if (sizes > log_buffer_size(id)) {
- size_t sizeOver90Percent = sizes - ((log_buffer_size(id) * 9) / 10);
- size_t elements = stats.elements(id);
- unsigned long pruneRows = elements * sizeOver90Percent / sizes;
- elements /= 10;
- if (pruneRows <= elements) {
- pruneRows = elements;
+ unsigned long maxSize = log_buffer_size(id);
+ if (sizes > maxSize) {
+ size_t sizeOver, minElements, elements = stats.elements(id);
+ if (maxSize > (4 * LOG_BUFFER_SIZE)) {
+ sizeOver = sizes - ((maxSize * 99) / 100);
+ minElements = elements / 100;
+ } else {
+ sizeOver = sizes - ((maxSize * 9) / 10);
+ minElements = elements / 10;
+ }
+ unsigned long pruneRows = elements * sizeOver / sizes;
+ if (pruneRows <= minElements) {
+ pruneRows = minElements;
}
prune(id, pruneRows);
}