diff --git a/src/options.c b/src/options.c
index fe94a1fb..ecbbf30d 100644
--- a/src/options.c
+++ b/src/options.c
@@ -81,12 +81,14 @@ static mi_option_desc_t options[_mi_option_last] =
   { 0, UNINIT, MI_OPTION(segment_reset) },       // reset segment memory on free (needs eager commit)
 #if defined(__NetBSD__)
   { 0, UNINIT, MI_OPTION(eager_commit_delay) },  // the first N segments per thread are not eagerly committed
-#else
+#elif defined(_WIN32)
   { 4, UNINIT, MI_OPTION(eager_commit_delay) },  // the first N segments per thread are not eagerly committed (but per page in the segment on demand)
+#else
+  { 1, UNINIT, MI_OPTION(eager_commit_delay) },  // the first N segments per thread are not eagerly committed (but per page in the segment on demand)
 #endif
-  { 1,    UNINIT, MI_OPTION(allow_decommit) },    // decommit pages when not eager committed
-  { 250,  UNINIT, MI_OPTION(reset_delay) },       // reset delay in milli-seconds
-  { 500,  UNINIT, MI_OPTION(arena_reset_delay) }, // reset delay in milli-seconds
+  { 1,    UNINIT, MI_OPTION(allow_decommit) },    // decommit slices when no longer used (after reset_delay milli-seconds)
+  { 500,  UNINIT, MI_OPTION(reset_delay) },       // reset delay in milli-seconds
+  { 1000, UNINIT, MI_OPTION(arena_reset_delay) }, // reset delay in milli-seconds for freed segments
   { 0,    UNINIT, MI_OPTION(use_numa_nodes) },    // 0 = use available numa nodes, otherwise use at most N nodes. 
   { 100,  UNINIT, MI_OPTION(os_tag) },            // only apple specific for now but might serve more or less related purpose
   { 16,   UNINIT, MI_OPTION(max_errors) }         // maximum errors that are output