Test

src/komodo_globals.h

@@ -15,6 +15,7 @@
 
 #include "komodo_defs.h"
 
+void komodo_prefetch(FILE *fp);
 uint32_t komodo_heightstamp(int32_t height);
 void komodo_stateupdate(int32_t height,uint8_t notarypubs[][33],uint8_t numnotaries,uint8_t notaryid,uint256 txhash,uint64_t voutmask,uint8_t numvouts,uint32_t *pvals,uint8_t numpvals,int32_t kheight,uint32_t ktime,uint64_t opretvalue,uint8_t *opretbuf,uint16_t opretlen,uint16_t vout,uint256 MoM,int32_t MoMdepth);
 void komodo_init(int32_t height);

src/komodo_utils.h

@@ -1696,3 +1696,24 @@ struct komodo_state *komodo_stateptr(char *symbol,char *dest)
     komodo_nameset(symbol,dest,ASSETCHAINS_SYMBOL);
     return(komodo_stateptrget(symbol));
 }
+
+void komodo_prefetch(FILE *fp)
+{
+    long fsize,fpos; int32_t incr = 16*1024*1024;
+    fpos = ftell(fp);
+    fseek(fp,0,SEEK_END);
+    fsize = ftell(fp);
+    if ( fsize > incr )
+    {
+        char *ignore = (char *)malloc(incr);
+        if ( ignore != 0 )
+        {
+            rewind(fp);
+            while ( fread(ignore,1,incr,fp) == incr ) // prefetch
+                fprintf(stderr,".");
+            free(ignore);
+        }
+    }
+    fseek(fp,fpos,SEEK_SET);
+}
+

src/main.cpp

@@ -4310,10 +4310,9 @@ bool CheckDiskSpace(uint64_t nAdditionalBytes)
     return true;
 }
 
-
 FILE* OpenDiskFile(const CDiskBlockPos &pos, const char *prefix, bool fReadOnly)
 {
-    static int32_t didinit[64]; long fsize,fpos; int32_t incr = 16*1024*1024;
+    static int32_t didinit[64];
     if (pos.IsNull())
         return NULL;
     boost::filesystem::path path = GetBlockPosFilename(pos, prefix);
@@ -4327,22 +4326,7 @@ FILE* OpenDiskFile(const CDiskBlockPos &pos, const char *prefix, bool fReadOnly)
     }
     if ( pos.nFile < sizeof(didinit)/sizeof(*didinit) && didinit[pos.nFile] == 0 && strcmp(prefix,(char *)"blk") == 0 )
     {
-        fpos = ftell(file);
-        fseek(file,0,SEEK_END);
-        fsize = ftell(file);
-        if ( fsize > incr )
-        {
-            char *ignore = (char *)malloc(incr);
-            if ( ignore != 0 )
-            {
-                rewind(file);
-                while ( fread(ignore,1,incr,file) == incr ) // prefetch
-                    fprintf(stderr,".");
-                free(ignore);
-                // fprintf(stderr,"blk.%d loaded %ld bytes set fpos.%ld loading.%d\n",(int)pos.nFile,(long)ftell(file),(long)fpos,KOMODO_LOADINGBLOCKS);
-            }
-        }
-        fseek(file,fpos,SEEK_SET);
+        komodo_prefetch(file);
         didinit[pos.nFile] = 1;
     }
     if (pos.nPos) {

src/wallet/wallet.cpp

@@ -3041,15 +3041,25 @@ CAmount CWallet::GetMinimumFee(unsigned int nTxBytes, unsigned int nConfirmTarge
 }
 
 
-
+void komodo_prefetch(FILE *fp);
 
 DBErrors CWallet::LoadWallet(bool& fFirstRunRet)
 {
     if (!fFileBacked)
         return DB_LOAD_OK;
     fFirstRunRet = false;
-    DBErrors nLoadWalletRet = CWalletDB(strWalletFile,"cr+").LoadWallet(this);
     fprintf(stderr,"loading wallet %s %u\n",strWalletFile.c_str(),(uint32_t)time(NULL));
+    {
+        FILE *fp;
+        if ( (fp= fopen(strWalletFile.c_str(),"rb")) != 0 )
+        {
+            komodo_prefetch(fp);
+            fclose(fp);
+        }
+    }
+    fprintf(stderr,"prefetched wallet %s %u\n",strWalletFile.c_str(),(uint32_t)time(NULL));
+    DBErrors nLoadWalletRet = CWalletDB(strWalletFile,"cr+").LoadWallet(this);
+    fprintf(stderr,"loaded wallet %s %u\n",strWalletFile.c_str(),(uint32_t)time(NULL));
     if (nLoadWalletRet == DB_NEED_REWRITE)
     {
         if (CDB::Rewrite(strWalletFile, "\x04pool"))