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    [Dev] Feathercoin 0.9.6.2 * Maintenance fix, build & upgrade issues notes.

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    • wrapper
      wrapper Moderators last edited by wrapper

      Re: pindex->GetBlockHash() and view.GetBestBlock()

      2017-08-12 12:19:10 init message: Verifying blocks…
      2017-08-12 12:19:10 pindex->GetBlockHash()=e99f253c8e758d109b7b52b17509d34196229628ead58ac3fe4ab4d278e97acc
      2017-08-12 12:19:10 view.GetBestBlock()=e99f253c8e758d109b7b52b17509d34196229628ead58ac3fe4ab4d278e97acc

      main.cpp - Line 1823

            LogPrintf("pindex->GetBlockHash()=%s \n",pindex->GetBlockHash().ToString());
           LogPrintf("view.GetBestBlock()=%s \n",view.GetBestBlock().ToString());
      

      Original code

            if (fDebug)
                 LogPrintf("pindex->GetBlockHash()=%s \n",pindex->GetBlockHash().ToString());
            if (fDebug)
                 LogPrintf("view.GetBestBlock()=%s \n",view.GetBestBlock().ToString());
      

      Updated code

      if (fDebug)
           LogPrintf("ConnectBlock hashPrevBlock=%s \n",hashPrevBlock.ToString());
      if (fDebug)
           LogPrintf("ConnectBlock view.GetBestBlock()=%s \n",view.GetBestBlock().ToString());
      

      Code update main.cpp Line 1957

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      • wrapper
        wrapper Moderators last edited by wrapper

        Re: Loaded 10230 addresses from peers.dat 43ms

        init.cpp Line 1109

           if (fDebug) 
                 LogPrintf("Loaded %i addresses from peers.dat  %dms\n", addrman.size(), GetTimeMillis() - nStart);
        

        Code updated

        init.cpp - Line 1121

        if (fDebug)
             {
                    LogPrintf("mapBlockIndex.size() = %u\n",   mapBlockIndex.size());
                    LogPrintf("nBestHeight = %d\n", chainActive.Height());
             }
         #ifdef ENABLE_WALLET
             if (fDebug)
                  {
                  LogPrintf("setKeyPool.size() = %u\n",      pwalletMain ? pwalletMain->setKeyPool.size() : 0);
                  LogPrintf("mapWallet.size() = %u\n",       pwalletMain ? pwalletMain->mapWallet.size() : 0);
                  LogPrintf("mapAddressBook.size() = %u\n",  pwalletMain ? pwalletMain->mapAddressBook.size() : 0);
                   }
          #endif
        

        Updated code

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        • wrapper
          wrapper Moderators last edited by wrapper

          Remaining Debug messages

          2017-08-12 12:51:41 Feathercoin version v0.9.6.2-ftcit-Standard (2017-07-14 17:27:25 +0200)
          2017-08-12 12:51:41 Using OpenSSL version OpenSSL 1.0.2g 1 Mar 2016
          2017-08-12 12:51:41 Using BerkeleyDB version Berkeley DB 5.3.28: (September 9, 2013)
          2017-08-12 12:51:41 Default data directory /home/wrapper/.feathercoin
          2017-08-12 12:51:41 Using data directory /home/wrapper/.feathercoin
          2017-08-12 12:51:41 Using at most 125 connections (1024 file descriptors available)
          2017-08-12 12:51:41 Using 8 threads for script verification
          2017-08-12 12:51:41 Using wallet wallet.dat
          2017-08-12 12:51:41 init message: Verifying wallet…
          2017-08-12 12:51:41 init message: Loading block index…
          2017-08-12 12:51:56 init message: Verifying blocks…
          2017-08-12 12:51:56 No coin database inconsistencies in last 289 blocks (535 transactions)
          2017-08-12 12:51:56 init message: Checking ACP …
          2017-08-12 12:51:56 block index 14829ms
          2017-08-12 12:51:56 init message: Loading wallet…
          2017-08-12 12:51:56 nFileVersion = 90602
          2017-08-12 12:51:56 Keys: 0 plaintext, 0 encrypted, 149 w/ metadata, 0 total
          2017-08-12 12:51:56 wallet 220ms
          2017-08-12 12:51:56 init message: Loading addresses…
          2017-08-12 12:51:56 init message: Done loading
          2017-08-12 12:51:56 Initialization result: 1
          2017-08-12 12:51:58 connect() to 73.96.36.22:9336 failed after select(): Connection refused (111)
          2017-08-12 12:52:01 ERROR: GetMyExternalIP() : connection to 91.198.22.70:80 failed
          2017-08-12 12:52:02 GetMyExternalIP() returned xxx.xxx.xxx.xxx
          2017-08-12 12:52:02 AddLocal(xxx.xxx.xxx.xxx:9336,4)
          2017-08-12 12:52:02 ext-ip thread exit
          2017-08-12 12:52:07 dnsseed thread exit
          2017-08-12 12:52:24 connect() to xxx.xxx.xxx.xxx:9336 failed after select(): No route to host (113)

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          • wrapper
            wrapper Moderators last edited by wrapper

            init.cpp Line 638

                if (GetBoolArg("-shrinkdebugfile", !fDebug))
                     ShrinkDebugFile();
                 if (fDebug)
                     {
                       LogPrintf("\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n");
                       LogPrintf("Feathercoin version %s (%s)\n", FormatFullVersion(), CLIENT_DATE);
                       LogPrintf("Using OpenSSL version %s\n",  SSLeay_version(SSLEAY_VERSION));
                          }
             #ifdef ENABLE_WALLET
                 if (fDebug) 
                     LogPrintf("Using BerkeleyDB version %s\n", DbEnv::version(0, 0, 0));
             #endif
                 if (fDebug)
                     {
                           if (!fLogTimestamps)
                               LogPrintf("Startup time: %s\n", DateTimeStrFormat("%Y-%m-%d %H:%M:%S", GetTime()));
                             LogPrintf("Default data directory %s\n", GetDefaultDataDir().string());
                             LogPrintf("Using data directory %s\n", strDataDir);
                             LogPrintf("Using at most %i connections (%i file descriptors available)\n", nMaxConnections, nFD);
                     }     
                  std::ostringstream strErrors;
            

            if (fDebug) added to a number of “normal condition” debug messages.

            walletdb ~ Line 700

                  if (fDebug)
                 {
                      LogPrintf("nFileVersion = %d\n", wss.nFileVersion);
                      LogPrintf("Keys: %u plaintext, %u encrypted, %u w/ metadata, %u total\n",
                           wss.nKeys, wss.nCKeys, wss.nKeyMeta, wss.nKeys + wss.nCKeys);
                  }
            

            Code added

            init.cpp Line 949

                 if (fDebug)
                     LogPrintf(" block index %15dms\n", GetTimeMillis() - nStart);
            

            Code added

            net.cpp Line 489

            /// debug print
                if (fDebug)
                     LogPrint("net", "trying connection %s lastseen=%.1fhrs\n",
            

            Code added

            net.cpp Line 348

                   if (fDebug)  
                        LogPrintf("GetMyExternalIP() received [%s] %s\n", strLine, addr.ToString());
            

            init.cpp Line 672

            if (!fDisableWallet) {
                if (fDebug)
                     LogPrintf("Using wallet %s\n", strWalletFile);
                uiInterface.InitMessage(_("Verifying wallet..."));
            

            Code added

            init.cpp Line 661

                if (nScriptCheckThreads) {
                    if (fDebug)
                         LogPrintf("Using %u threads for script verification\n", nScriptCheckThreads);
            

            Code added

            /src/qt/bitcoin.cpp Line 446

            if (fDebug)
                LogPrintf("Shutdown result: %i\n", retval);
            

            /src/qt/bitcoin.cpp Line 390

            if (fDebug)
                LogPrintf("Initialization result: %i\n", retval);
            

            Code added

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            • wrapper
              wrapper Moderators last edited by wrapper

              net.cpp Line 316

              if (!ConnectSocket(addrConnect, hSocket))
                  {
                  if (fDebug)    
                       LogPrintf("GetMyExternalIP() : connection to %s failed", addrConnect.ToString());
                  return true;
                  }
              

              Debug selection code added, removed from return error.

              init.cpp Line 112

              if (fDebug)
                 LogPrintf("Shutdown : In progress...\n");
              

              init.cpp Line 152

              if (fDebug)
                  LogPrintf("Shutdown : done\n");
              

              Code added

              net.cpp Line 240

              if (fDebug)
                  LogPrintf("AddLocal(%s,%i)\n", addr.ToString(), nScore);
              

              net.cpp Line 1732

                          {
                              if (fDebug)
                                 LogPrintf("IPv4 %s: %s\n", ifa->ifa_name, addr.ToString());
              
              
                          }
              

              net.cpp Line 429

                  if (fDebug)
                       LogPrintf("GetMyExternalIP() returned %s\n", addrLocalHost.ToStringIP());
                  AddLocal(addrLocalHost, LOCAL_HTTP);
              

              netbase.cpp Line 366

                         if (fDebug)
                              LogPrintf("select() for %s failed: %s\n", addrConnect.ToString(), NetworkErrorString(WSAGetLastError()));
              

              netbase.cpp Line 385

                          if (fDebug)
                              LogPrintf("connect() to %s failed after select(): %s\n", addrConnect.ToString(), NetworkErrorString(nRet));
              

              init.cpp Line 1062

                  if (fDebug)
                  {
                       LogPrintf("%s", strErrors.str());
                       LogPrintf(" wallet      %15dms\n", GetTimeMillis() - nStart);
                  }
              

              main.cpp Line 4722

                  if (fDebug)
                      LogPrintf("Receive checkpoint,hashCheckpoint=%s\n.",checkpoint.hashCheckpoint.ToString().c_str());
              
                  if (checkpoint.ProcessSyncCheckpoint(pfrom))
                  {
                          if fDebug)
                             LogPrintf("checkpoint.ProcessSyncCheckpoint(pfrom)=true, hashCheckpoint=%s\n.",checkpoint.hashCheckpoint.ToString().c_str());
              

              Code Added

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              • wrapper
                wrapper Moderators last edited by wrapper

                net.cpp - Line 1771

                 if (fDebug)
                    LogPrintf("StopNode()\n");
                

                net.cpp - Line 1799

                   if (fDebug)
                       LogPrintf("DNS seeding disabled\n");
                

                Util.h

                Various thread start end messages

                   { 
                         if (fDebug)
                    /        LogPrintf("%s thread start\n", name);
                         func();
                         if (fDebug)
                              LogPrintf("%s thread exit\n", name);
                     }
                     catch (boost::thread_interrupted)
                     {
                          if (fDebug)
                                LogPrintf("%s thread interrupt\n", name);
                

                Code added

                /src/qt/bitcoin.cpp

                if (fDebug)
                    LogPrintf("Requesting initialize\n");
                
                
                if (f Debug)
                   LogPrintf("Requesting shutdown\n");
                
                if (fDebug)
                   LogPrintf("Stopping thread\n");
                emit stopThread();
                coreThread->wait();
                if (fDebug)
                    LogPrintf("Stopped thread\n");
                

                Code added

                     {
                         if (fDebug)
                             LogPrintf("Running Shutdown in thread\n");
                         threadGroup.interrupt_all();
                         threadGroup.join_all();
                         Shutdown();
                         if (fDebug)
                             LogPrintf("Shutdown finished\n");
                

                Code added

                    if (fDebug)
                        LogPrintf("Running AppInit2 in thread\n");
                

                Code added

                if (fDebug)
                    LogPrintf("init message: %s\n", message);
                

                Code added

                if (fDebug)
                    LogPrint("qt", "GUI: %s\n", msg);
                

                Code added

                if (fDebug)
                     LogPrint("qt", "GUI: %s\n", qPrintable(msg));
                

                Code added

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                • wrapper
                  wrapper Moderators last edited by wrapper

                  Remaining Messages

                  2017-08-12 18:01:39 Receive checkpoint,hashCheckpoint=0000000000000000000000000000000000000000000000000000000000000000
                  .ERROR: CSyncCheckpoint::CheckSignature() : verify signature failed
                  2017-08-12 18:02:05 UPNP_DeletePortMapping() returned : 0

                  net.cpp

                          if (fDebug)
                              LogPrintf("UPNP_DeletePortMapping() returned : %d\n", r);
                  

                  Code added

                          if(r != UPNPCOMMAND_SUCCESS)
                              if (fDebug)
                                   LogPrintf("UPnP: GetExternalIPAddress() returned %d\n", r);
                          else
                  

                  Code added

                             else
                                  if (fDebug)
                                      LogPrintf("UPnP: GetExternalIPAddress failed.\n");
                  

                  Code added

                              if(r!=UPNPCOMMAND_SUCCESS)
                                  if (fDebug)
                                      LogPrintf("AddPortMapping(%s, %s, %s) failed with code %d (%s)\n",
                                      port, port, lanaddr, r, strupnperror(r));
                  

                  Code added

                  checkpointsync.cpp

                  if (!key.SetPubKey(ParseHex(strMasterPubKey)))
                      {
                      if (fDebug)
                          LogPrintf("CSyncCheckpoint::CheckSignature() : SetPubKey failed");
                      return true;
                      }
                  if (!key.Verify(Hash(vchMsg.begin(), vchMsg.end()), vchSig))
                      {
                      if (fDebug)
                          LogPrintf("CSyncCheckpoint::CheckSignature() : verify signature failed");
                      return true;
                      }
                  

                  Code added

                  1 Reply Last reply Reply Quote 1
                  • Wellenreiter
                    Wellenreiter Moderators last edited by

                    I’d keep the last one, as ACP checkpoint checksignature failed is relative important

                    Feathercoin development donation address: 6p8u3wtct7uxRGmvWr2xvPxqRzbpbcd82A
                    Openpgp key: 0x385C34E77F0D74D7 (at keyserver.ubuntu.com)/fingerprint: C7B4 E9EA 17E1 3D12 07AB 1FDB 385C 34E7 7F0D 74D7

                    1 Reply Last reply Reply Quote 1
                    • wrapper
                      wrapper Moderators last edited by wrapper

                      I’ve been through and added more, if (fDebug) (as opposed to just commenting them out) .

                      Most of the debug messages are still there, you just have to run -debug to see them. The checkpoint “error” did not seem to be a “Fault”, just a none complaint checkpoint.

                      1 Reply Last reply Reply Quote 1
                      • wrapper
                        wrapper Moderators last edited by wrapper

                        [FAQ] What is the difference between LogPrint() and LogPrintf() in the Feathercoin/Bitcoin source code?

                        Under normal conditions the LogPrintf() should only be used to report an unusual error, otherwise it is used during development to confirm an action and commented out for production versions.

                        Writing unnecessary messages to debug slows the system and takes up disk space. Whilst the debug can be shrunk, this relies on additional parameters being passed or set up at install time.

                        LogPrintf() statements log the output into debug.log file. LogPrint() statements only out put to the log file if -debug is set.

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                        • wrapper
                          wrapper Moderators last edited by

                          main.h

                           static const unsigned int DEFAULT_MAX_ORPHAN_TRANSACTIONS = 100;
                            /** Default for -maxorphanblocks, maximum number of orphan blocks kept in memory */
                           -static const unsigned int DEFAULT_MAX_ORPHAN_BLOCKS = 750;
                          
                           +static const unsigned int DEFAULT_MAX_ORPHAN_BLOCKS = 7500;
                          
                            /** The maximum size of a blk?????.dat file (since 0.8) */
                          

                          Increased Max orphans default to 7500.

                          Wellenreiter 1 Reply Last reply Reply Quote 0
                          • Wellenreiter
                            Wellenreiter Moderators @wrapper last edited by

                            @wrapper

                            too high. I’d try 1500.

                            There is a reason to limit the max number of orphan blocks

                            Feathercoin development donation address: 6p8u3wtct7uxRGmvWr2xvPxqRzbpbcd82A
                            Openpgp key: 0x385C34E77F0D74D7 (at keyserver.ubuntu.com)/fingerprint: C7B4 E9EA 17E1 3D12 07AB 1FDB 385C 34E7 7F0D 74D7

                            wrapper 1 Reply Last reply Reply Quote 0
                            • wrapper
                              wrapper Moderators @Wellenreiter last edited by wrapper

                              @Wellenreiter said in [Dev] Feathercoin 0.9.6.2 * Maintenance fix, build & upgrade issues notes.:

                              @wrapper

                              too high. I’d try 1500.

                              There is a reason to limit the max number of orphan blocks

                              I’ve tested it at 10,000 and that is (7500) what Dogecoin raised it to. There is no point it being lower, it was set too low.

                              Wellenreiter 1 Reply Last reply Reply Quote 0
                              • Wellenreiter
                                Wellenreiter Moderators @wrapper last edited by Wellenreiter

                                @wrapper it’s a security measure against (D)DOS attacks to the BC, so it will work even when set to 10000000, but may stall the BC, if someone injects a high number of orphans. I’m not sure how many orphans an attacker could create, but…

                                Feathercoin development donation address: 6p8u3wtct7uxRGmvWr2xvPxqRzbpbcd82A
                                Openpgp key: 0x385C34E77F0D74D7 (at keyserver.ubuntu.com)/fingerprint: C7B4 E9EA 17E1 3D12 07AB 1FDB 385C 34E7 7F0D 74D7

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                                • wrapper
                                  wrapper Moderators last edited by

                                  From the sync tests, we know there are already > 6000 ORHAN BLOCKS chains in the Blockchain already…

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                                  • wrapper
                                    wrapper Moderators last edited by wrapper

                                    https://github.com/FeatherCoin/Feathercoin/pull/216

                                    Debug.log io review - Resultant fixes / improvements:

                                    A large number of debug messages were only useful in development and have been commented out.

                                    A further large number of messages only indicate information in an error condition and have will now only write out if -debug is set.

                                    A small number of error messages are alerted during sync, because they are on an orphan chain, that is correct (to have the error). Further errors may need investigating so they were changed to write on -debug.

                                    Because the max ORPHAN BLOCKS in a chain exceeds the current temporary memory pool during sync, this caused stalling whilst the memory was reloaded. The memory can be increased with a switch -maxorphanblocks=10000 - This has been increased from 750 to 7500, as per Dogecoin fix, is being tested for sufficiency / memory issues.

                                    A number of LogPrintf() messages were reviewed and considered useful error messages to write to Debug.log that may help support in unusual circumstances. These were left unchainged.

                                    UTF-8 translations were backported from 0.11.2

                                    The Feathercoin client is now starting and stopping without creating a debug.log. When Debug is initiated the information is more succinct and relevant. The synchronization time is very significantly improved.

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                                    • wrapper
                                      wrapper Moderators last edited by wrapper

                                      Remaining Messages no Debug:

                                      2017-08-13 13:48:40 partner xxx.xxx.xxx.xxx:9336 using obsolete version 60002; disconnecting
                                      2017-08-13 13:48:40 ProcessMessage(version, 102 bytes) FAILED
                                      2017-08-13 14:00:00 ERROR: CAlert::CheckSignature() : verify signature failed
                                      2017-08-13 14:00:51 ERROR: CheckBlockHeader() : block with timestamp before last checkpoint
                                      2017-08-13 14:00:51 ERROR: ProcessBlock() : CheckBlock FAILED
                                      2017-08-13 14:00:51 ERROR: CheckBlockHeader() : block with timestamp before last checkpoint
                                      2017-08-13 14:00:51 ERROR: ProcessBlock() : CheckBlock FAILED

                                      Large block same message then :

                                      2017-08-13 14:08:52 socket recv error Connection reset by peer (104)

                                      ~Block 1145437

                                      src/main.cpp - Line 2835
                                      2017-08-13 14:00:51 ERROR: CheckBlockHeader() : block with timestamp before last checkpoint

                                           if (deltaTime < 0)
                                             {
                                                 return state.DoS(100, error("CheckBlockHeader() : block with timestamp before last checkpoint"),
                                               REJECT_CHECKPOINT, "time-too-old");
                                      

                                      These are old rejected blocks, I assume, so not required on sync.

                                      main.cpp - Updated code

                                           {
                                               if (fDebug)
                                                    LogPrintf("CheckBlockHeader() : block with timestamp before last checkpoint");
                                               return state.DoS(100, NULL,
                                                                REJECT_CHECKPOINT, "time-too-old");
                                           }
                                      

                                      Code added

                                      main.cpp Line 3199

                                      if (!CheckBlock(*pblock, state, INT_MAX)) 
                                      	  return error("ProcessBlock() : CheckBlock FAILED");
                                      

                                      Updated to :

                                      if (!CheckBlock(*pblock, state, INT_MAX)) 
                                                if (fDebug)
                                                    LogPrintf("ProcessBlock() : CheckBlock FAILED");
                                      	  return true ;
                                      

                                      netbase.cpp

                                      Update with Bitcoin bug fix to correct (104) error

                                      https://github.com/bitcoin/bitcoin/issues/4552
                                      https://github.com/bitcoin/bitcoin/commit/109849e204f91d8b04b0e57da87e45b461096b50

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                                      • wrapper
                                        wrapper Moderators last edited by wrapper

                                        Full sync from scratch Test, 0.9.6.2 in progress

                                        So far : 2.5 years in 13 hours : 5 hrs P/Day. - estimate 20 hrs full sync time (~4pm).

                                        Remaining Debug messages :

                                        2017-08-13 18:12:10 socket recv error Connection reset by peer (104)
                                        2017-08-13 18:25:03 socket recv error Connection timed out (110)

                                        Recommendation :

                                        The Debug.log testing has shown that a number of operation, which were envisioned as errors initially, have occurred in the blockchain. This has meant that certain settings, loop levels or error messages are repeated during re-syncronisation of the blockchain.

                                        Where’as 0.11.2 version already contain some speed ups that effect Bitcoin, (secp256k1) the FTC block sync is considerably reduced, but at ~22 hrs (estimate), would still seem long.

                                        ToDo.

                                        Set up a script and chron job to pole feathercoin during a resync and write Blocknumber every minute. This will 1200 data points to identify any problem block chains. These may indicate further settings that can be tweaked.

                                         feathercoind getinfo >> StallTest.txt
                                        

                                        Preliminary test show synchronization is running pretty consistently at :

                                        BlocksPerHour
                                        39750
                                        BlocksPerMinute
                                        662

                                        Full sync took 29 Hours, with no special settings and 4 outputs to debug, about lost connections…

                                        BlockSycTest

                                        Get Block count was often delayed

                                        BlockSycTest

                                        Blocks per minute

                                        BlockSycTest

                                        Testable

                                        -dbcache to a value around 4000

                                        8 connections limitation

                                        Give Higher CPU Priority to Bitcoin-Qt Process
                                        The above approach of blockchain import should be faster than syncing the whole blockchain block by block. Give the process higher CPU priority might further help speeding up the blockchain import especially you have more CPU cycle at your disposal. If you’re using Mac OS X, and assuming the Process ID (PID) of Bitcoin-Qt is 2202, use the following command to give Bitcoin-Qt process hight CPU priority:

                                        sudo renice -20 -p 2202
                                        

                                        *-20 is the nice value a value between -20 and +19. The lower the nice value, the higher priority the process gets.

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                                        • wrapper
                                          wrapper Moderators last edited by wrapper

                                          Results of Sync Speed Tests

                                          Found very interesting Result from Sync speed Tests :::::

                                          The sync speed dropped from ~710 Blocks per minute to ~670 Blocks per minute

                                          After the synchronsiation passed the Hard Fork for : One minute Blocks, Neoscrypt and eHRC additional calculations.

                                          This is actually impressive as we are processing 2.5 times the amount of blocks and re-targeting every block! It indicates that Neoscrypt is efficient. Thanks @Ghostlander.

                                          Although it might also be effected by other factors, such as the increasing number of transactions, it mean that it would be worthwhile to do the Neoscrypt update :

                                          https://github.com/ghostlander/Phoenixcoin/commit/ddbdbf6cbff4ca52f87268f28c60d588bf843344

                                          I suggest we test that in 0.9.6.2 as the best version / (none alpha) we have at the moment.

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                                          • wrapper
                                            wrapper Moderators last edited by

                                            Results of dbcache test

                                            Comparison shows a slight improvement with dbcache set to 3000, particularly as glitch in initial test associated with dropout, or network effect.

                                            It may be worth while to increase default to 1000 from 300, minor downside of disk space / memory.

                                            dbcache set to 3000

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