From 557b27e0beeee2b201c4f2677289a2296d5f4e32 Mon Sep 17 00:00:00 2001
From: Christian Schwarz <christian@neon.tech>
Date: Wed, 5 Feb 2025 15:11:30 +0100
Subject: [PATCH] port forward the drive-by fix to measure() from 
 2466a2f97763aff5b84253a242909fc19bc995a2

---
 pageserver/src/metrics.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pageserver/src/metrics.rs b/pageserver/src/metrics.rs
index 96ee157856..dbf1f69841 100644
--- a/pageserver/src/metrics.rs
+++ b/pageserver/src/metrics.rs
@@ -1319,12 +1319,12 @@ impl SmgrOpFlushInProgress {
     {
         let mut fut = std::pin::pin!(fut);
 
-        let now = Instant::now();
         // Whenever observe_guard gets called, or dropped,
         // it adds the time elapsed since its last call to metrics.
         // Last call is tracked in `now`.
         let mut observe_guard = scopeguard::guard(
             || {
+                let now = Instant::now();
                 let elapsed = now - self.base;
                 self.global_micros
                     .inc_by(u64::try_from(elapsed.as_micros()).unwrap());