perf(cketh): stop making a detected deposit wait to be swept

[gregorydemay]

Why

• A freshly enqueued sweep waited for the send task's next interval before being sent, and under the decided design the mint follows the sweep — so that wait is crediting latency a user sees.

What

• enqueue_batched_sweep kicks the send task immediately after enqueueing, instead of leaving the new sweeps for its next tick.

[Copilot]

Pull request overview

Reduces ckETH deposit-crediting latency by triggering sweep processing immediately after enqueueing.

Changes:

• Schedules immediate sweeper transaction processing.
• Documents interaction with the periodic sender.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
src/sweep/mod.rs	Adds immediate processing trigger.
src/main.rs	Clarifies periodic timer behavior.

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[Copilot]

Pull request overview

Copilot reviewed 2 out of 2 changed files in this pull request and generated no new comments.

Suppressed comments (1)

rs/ethereum/cketh/minter/src/sweep/mod.rs:357

• This kick can be lost when the interval-driven send task is already running. process_sweeper_transactions returns immediately if its SweeperSend guard is held (lines 75–84); if that task has already taken its request batch, it will only notice this newly enqueued request in its final pending check and schedule the normal 3-minute retry. Thus a fresh deposit can still incur substantial avoidable latency exactly when enqueue and send ticks overlap. Please make the wake-up coalescing: an enqueue that races with an active sender must cause another prompt pass after that sender releases its guard, rather than relying on the normal retry interval.

    ic_cdk_timers::set_timer(Duration::from_secs(0), async {
        process_sweeper_transactions().await;
    });

[gregorydemay]

🤖 Closing: superseded by the restructured stack #11353 (PRs #11359 → #11360 → #11362 → #11363 → #11342).