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cmd/geth,cmd/utils: change the default cache to always be 4096 #33836

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Merged
MariusVanDerWijden merged 1 commit into from
Mar 4, 2026
+1 −14
Merged

cmd/geth,cmd/utils: change the default cache to always be 4096 #33836

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13 changes: 0 additions & 13 deletions cmd/geth/main.go
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Original file line number Diff line number Diff line change
Expand Up @@ -22,7 +22,6 @@ import (
"os"
"slices"
"sort"
"strconv"
"time"

"github.com/ethereum/go-ethereum/accounts"
Expand Down Expand Up @@ -308,18 +307,6 @@ func prepare(ctx *cli.Context) {
case !ctx.IsSet(utils.NetworkIdFlag.Name):
log.Info("Starting Geth on Ethereum mainnet...")
}
// If we're a full node on mainnet without --cache specified, bump default cache allowance
if !ctx.IsSet(utils.CacheFlag.Name) && !ctx.IsSet(utils.NetworkIdFlag.Name) {
// Make sure we're not on any supported preconfigured testnet either
if !ctx.IsSet(utils.HoleskyFlag.Name) &&
!ctx.IsSet(utils.SepoliaFlag.Name) &&
!ctx.IsSet(utils.HoodiFlag.Name) &&
!ctx.IsSet(utils.DeveloperFlag.Name) {
// Nope, we're really on mainnet. Bump that cache up!
log.Info("Bumping default cache on mainnet", "provided", ctx.Int(utils.CacheFlag.Name), "updated", 4096)
ctx.Set(utils.CacheFlag.Name, strconv.Itoa(4096))
}
}
}

// geth is the main entry point into the system if no special subcommand is run.
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2 changes: 1 addition & 1 deletion cmd/utils/flags.go
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Expand Up @@ -481,7 +481,7 @@ var (
CacheFlag = &cli.IntFlag{
Name: "cache",
Usage: "Megabytes of memory allocated to internal caching (default = 4096 mainnet full node, 128 light mode)",
Value: 1024,
Value: 4096,
Category: flags.PerfCategory,
}
CacheDatabaseFlag = &cli.IntFlag{
Expand Down
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