doc: Clarify that feerates are per virtual size

src/init.cpp

@@ -510,7 +510,7 @@ void SetupServerArgs(NodeContext& node)
     argsman.AddArg("-mocktime=<n>", "Replace actual time with " + UNIX_EPOCH_TIME + " (default: 0)", ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY, OptionsCategory::DEBUG_TEST);
     argsman.AddArg("-maxsigcachesize=<n>", strprintf("Limit sum of signature cache and script execution cache sizes to <n> MiB (default: %u)", DEFAULT_MAX_SIG_CACHE_SIZE), ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY, OptionsCategory::DEBUG_TEST);
     argsman.AddArg("-maxtipage=<n>", strprintf("Maximum tip age in seconds to consider node in initial block download (default: %u)", DEFAULT_MAX_TIP_AGE), ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY, OptionsCategory::DEBUG_TEST);
-    argsman.AddArg("-printpriority", strprintf("Log transaction fee per kB when mining blocks (default: %u)", DEFAULT_PRINTPRIORITY), ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY, OptionsCategory::DEBUG_TEST);
+    argsman.AddArg("-printpriority", strprintf("Log transaction fee rate in " + CURRENCY_UNIT + "/kvB when mining blocks (default: %u)", DEFAULT_PRINTPRIORITY), ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY, OptionsCategory::DEBUG_TEST);
     argsman.AddArg("-uacomment=<cmt>", "Append comment to the user agent string", ArgsManager::ALLOW_ANY, OptionsCategory::DEBUG_TEST);
 
     SetupChainParamsBaseOptions(argsman);

src/qt/forms/sendcoinsdialog.ui

@@ -850,7 +850,7 @@
                    <property name="toolTip">
                     <string>Specify a custom fee per kB (1,000 bytes) of the transaction's virtual size.
 
-Note:  Since the fee is calculated on a per-byte basis, a fee of "100 satoshis per kB" for a transaction size of 500 bytes (half of 1 kB) would ultimately yield a fee of only 50 satoshis.</string>
+Note:  Since the fee is calculated on a per-byte basis, a fee rate of "100 satoshis per kvB" for a transaction size of 500 virtual bytes (half of 1 kvB) would ultimately yield a fee of only 50 satoshis.</string>
                    </property>
                    <property name="text">
                     <string>per kilobyte</string>

src/rpc/net.cpp

@@ -601,8 +601,8 @@ static RPCHelpMan getnetworkinfo()
                                 {RPCResult::Type::BOOL, "proxy_randomize_credentials", "Whether randomized credentials are used"},
                             }},
                         }},
-                        {RPCResult::Type::NUM, "relayfee", "minimum relay fee for transactions in " + CURRENCY_UNIT + "/kvB"},
+                        {RPCResult::Type::NUM, "relayfee", "minimum relay fee rate for transactions in " + CURRENCY_UNIT + "/kvB"},
-                        {RPCResult::Type::NUM, "incrementalfee", "minimum fee increment for mempool limiting or BIP 125 replacement in " + CURRENCY_UNIT + "/kvB"},
+                        {RPCResult::Type::NUM, "incrementalfee", "minimum fee rate increment for mempool limiting or BIP 125 replacement in " + CURRENCY_UNIT + "/kvB"},
                         {RPCResult::Type::ARR, "localaddresses", "list of local addresses",
                         {
                             {RPCResult::Type::OBJ, "", "",

src/wallet/init.cpp

@@ -56,9 +56,9 @@ void WalletInit::AddWalletOptions(ArgsManager& argsman) const
     argsman.AddArg("-maxapsfee=<n>", strprintf("Spend up to this amount in additional (absolute) fees (in %s) if it allows the use of partial spend avoidance (default: %s)", CURRENCY_UNIT, FormatMoney(DEFAULT_MAX_AVOIDPARTIALSPEND_FEE)), ArgsManager::ALLOW_ANY, OptionsCategory::WALLET);
     argsman.AddArg("-maxtxfee=<amt>", strprintf("Maximum total fees (in %s) to use in a single wallet transaction; setting this too low may abort large transactions (default: %s)",
         CURRENCY_UNIT, FormatMoney(DEFAULT_TRANSACTION_MAXFEE)), ArgsManager::ALLOW_ANY, OptionsCategory::DEBUG_TEST);
-    argsman.AddArg("-mintxfee=<amt>", strprintf("Fees (in %s/kvB) smaller than this are considered zero fee for transaction creation (default: %s)",
+    argsman.AddArg("-mintxfee=<amt>", strprintf("Fee rates (in %s/kvB) smaller than this are considered zero fee for transaction creation (default: %s)",
                                                             CURRENCY_UNIT, FormatMoney(DEFAULT_TRANSACTION_MINFEE)), ArgsManager::ALLOW_ANY, OptionsCategory::WALLET);
-    argsman.AddArg("-paytxfee=<amt>", strprintf("Fee (in %s/kvB) to add to transactions you send (default: %s)",
+    argsman.AddArg("-paytxfee=<amt>", strprintf("Fee rate (in %s/kvB) to add to transactions you send (default: %s)",
                                                             CURRENCY_UNIT, FormatMoney(CFeeRate{DEFAULT_PAY_TX_FEE}.GetFeePerK())), ArgsManager::ALLOW_ANY, OptionsCategory::WALLET);
     argsman.AddArg("-rescan", "Rescan the block chain for missing wallet transactions on startup", ArgsManager::ALLOW_ANY, OptionsCategory::WALLET);
 #ifdef ENABLE_EXTERNAL_SIGNER

src/wallet/rpcwallet.cpp

@@ -2292,10 +2292,10 @@ static RPCHelpMan listlockunspent()
 static RPCHelpMan settxfee()
 {
     return RPCHelpMan{"settxfee",
-                "\nSet the transaction fee per kB for this wallet. Overrides the global -paytxfee command line parameter.\n"
+                "\nSet the transaction fee rate in " + CURRENCY_UNIT + "/kvB for this wallet. Overrides the global -paytxfee command line parameter.\n"
                 "Can be deactivated by passing 0 as the fee. In that case automatic fee selection will be used by default.\n",
                 {
-                    {"amount", RPCArg::Type::AMOUNT, RPCArg::Optional::NO, "The transaction fee in " + CURRENCY_UNIT + "/kvB"},
+                    {"amount", RPCArg::Type::AMOUNT, RPCArg::Optional::NO, "The transaction fee rate in " + CURRENCY_UNIT + "/kvB"},
                 },
                 RPCResult{
                     RPCResult::Type::BOOL, "", "Returns true if successful"