X-Git-Url: http://git.vrable.net/?a=blobdiff_plain;f=bluesky%2Finit.c;h=e2b35c64dc868e92ebb0372ed956c7cb1b38370a;hb=75aed7ed122b11bbbe3814b6cc9bbacbf5d791c1;hp=0feb0f54a25e03447c83232bc4f4c74fa389f53a;hpb=1edfd0c0070b18a6837385a9fd11ba759202495e;p=bluesky.git

diff --git a/bluesky/init.c b/bluesky/init.c
index 0feb0f5..e2b35c6 100644
--- a/bluesky/init.c
+++ b/bluesky/init.c
@@ -13,12 +13,33 @@
 
 #include "bluesky-private.h"
 
-BlueSkyOptions bluesky_options;
+int bluesky_verbose = 0;
+
+BlueSkyOptions bluesky_options = {
+    .cache_size = 1024*1024,         // Default cache size is 1 GiB
+};
 
 /* Maximum number of threads to use in any particular thread pool, or -1 for no
  * limit */
 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 {
     const char *env;
@@ -28,13 +49,18 @@ static struct {
     {"BLUESKY_OPT_WRITETHROUGH", &bluesky_options.writethrough_cache},
     {"BLUESKY_OPT_SYNC_INODE_FETCH", &bluesky_options.sync_inode_fetches},
     {"BLUESKY_OPT_SYNC_FRONTENDS", &bluesky_options.sync_frontends},
+    {"BLUESKY_CACHE_SIZE", &bluesky_options.cache_size},
     {NULL, NULL}
 };
 
 /* BlueSky library initialization. */
 
 void bluesky_store_init_s3(void);
+void bluesky_store_init_azure(void);
 void bluesky_store_init_kv(void);
+void bluesky_store_init_multi(void);
+void bluesky_store_init_bdb(void);
+void bluesky_store_init_simple(void);
 
 /* Initialize the BlueSky library and dependent libraries. */
 void bluesky_init(void)
@@ -54,4 +80,8 @@ void bluesky_init(void)
     bluesky_store_init();
     bluesky_store_init_kv();
     bluesky_store_init_s3();
+    bluesky_store_init_azure();
+    bluesky_store_init_multi();
+    bluesky_store_init_bdb();
+    bluesky_store_init_simple();
 }