Memory reserve limit

Author: asl

src/common/utils/memory_limit.cpp

@@ -66,8 +66,8 @@ void limit_memory(size_t limit) {
     }
 
     #if defined(SPADES_USE_MIMALLOC)
-    // Reserve half of the limit memory
-    res = mi_reserve_os_memory(rl.rlim_cur / 2, false, true);
+    // Reserve 1/4 of the limit memory
+    res = mi_reserve_os_memory(rl.rlim_cur / 4, false, true);
     if (res != 0) {
         WARN("Failed to reserve OS memory of " << GB << " Gb, mi_reserve_os_memory() call failed, errno = "
              << errno << " (" << strerror(errno) << "). Watch your memory consumption!");