X-Git-Url: http://git.vrable.net/?a=blobdiff_plain;f=bluesky%2Finit.c;h=fee9aade5310fdf1b7b287d71273fa53a10339ae;hb=966a43ffed492d387e0d75e56c3984d9001c15b1;hp=9a7a6ebfae566117d1ba1c1a110aa2e3299c10a6;hpb=fb15c75f3c8eeb3d7b277795ced44bb4928273a1;p=bluesky.git

diff --git a/bluesky/init.c b/bluesky/init.c
index 9a7a6eb..fee9aad 100644
--- a/bluesky/init.c
+++ b/bluesky/init.c
@@ -13,11 +13,30 @@
 
 #include "bluesky-private.h"
 
+int bluesky_verbose = 0;
+
 BlueSkyOptions bluesky_options;
 
 /* Maximum number of threads to use in any particular thread pool, or -1 for no
  * limit */
-int bluesky_max_threads = -1;
+int bluesky_max_threads = 16;
+
+/* Watermark levels for cache tuning: these control when dirty data is flushed
+ * from cache, when clean data is dropped from the cache, etc.  These values
+ * are measured in blocks, not bytes.
+ *
+ * There are a few relevant levels:
+ *   low: Below this point, data is not forced out due to memory pressure
+ *   medium: At this point start flushing data to get back below medium
+ *   high: Flush data very aggressively (launch extra tasks if needed)
+ */
+int bluesky_watermark_low_dirty    = (64 << 20) / BLUESKY_BLOCK_SIZE;
+int bluesky_watermark_medium_dirty = (96 << 20) / BLUESKY_BLOCK_SIZE;
+int bluesky_watermark_high_dirty   = (192 << 20) / BLUESKY_BLOCK_SIZE;
+
+int bluesky_watermark_low_total    = (64 << 20) / BLUESKY_BLOCK_SIZE;
+int bluesky_watermark_medium_total = (128 << 20) / BLUESKY_BLOCK_SIZE;
+int bluesky_watermark_high_total   = (256 << 20) / BLUESKY_BLOCK_SIZE;
 
 /* Environment variables that can be used to initialize settings. */
 static struct {