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feat(flashblocks): add metrics for current block and index #19712

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Merged
mattsse merged 2 commits into from
Nov 14, 2025
Merged

feat(flashblocks): add metrics for current block and index #19712

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73e6cf8
feat(flashblocks): add metrics for current block and index
reject-i Nov 13, 2025
b55ce49
rm duplicated histogram
mattsse Nov 14, 2025
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10 changes: 9 additions & 1 deletion crates/optimism/flashblocks/src/service.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -7,7 +7,7 @@ use crate::{
use alloy_eips::eip2718::WithEncoded;
use alloy_primitives::B256;
use futures_util::{FutureExt, Stream, StreamExt};
use metrics::Histogram;
use metrics::{Gauge, Histogram};
use op_alloy_rpc_types_engine::OpFlashblockPayloadBase;
use reth_chain_state::{CanonStateNotification, CanonStateNotifications, CanonStateSubscriptions};
use reth_evm::ConfigureEvm;
Expand Down Expand Up @@ -279,6 +279,7 @@ where

let elapsed = now.elapsed();
this.metrics.execution_duration.record(elapsed.as_secs_f64());

trace!(
target: "flashblocks",
parent_hash = %new_pending.block().parent_hash(),
Expand Down Expand Up @@ -349,6 +350,9 @@ where
index: args.last_flashblock_index,
block_number: args.base.block_number,
};
// Record current block and index metrics
this.metrics.current_block_height.set(fb_info.block_number as f64);
this.metrics.current_index.set(fb_info.index as f64);
// Signal that a flashblock build has started with build metadata
let _ = this.in_progress_tx.send(Some(fb_info));
let (tx, rx) = oneshot::channel();
Expand Down Expand Up @@ -389,4 +393,8 @@ struct FlashBlockServiceMetrics {
last_flashblock_length: Histogram,
/// The duration applying flashblock state changes in seconds.
execution_duration: Histogram,
/// Current block height.
current_block_height: Gauge,
/// Current flashblock index.
current_index: Gauge,
}