diff --git a/main.go b/main.go
index e2cacff..10de2fa 100644
--- a/main.go
+++ b/main.go
@@ -712,7 +712,7 @@ func printMarkAssist(db *sql.DB, w io.Writer) error {
 		if err := rows.Scan(&scopeID, &gname, &assists, &totalAssistNs, &maxAssistNs, &worstAtMs); err != nil {
 			return err
 		}
-		fmt.Fprintf(w, "      G%-8d %-40s %d assists, total %s, max %s @ t=%.0fms\n",
+		fmt.Fprintf(w, "      g%-8d %-40s %d assists, total %s, max %s @ t=%.0fms\n",
 			scopeID, shortenFunc(gname), assists, fmtDuration(totalAssistNs), fmtDuration(maxAssistNs), worstAtMs)
 	}
 	return rows.Err()
diff --git a/testdata/experiment-upsert1000-gateway.txt b/testdata/experiment-upsert1000-gateway.txt
index 40e53a4..a1acaf1 100644
--- a/testdata/experiment-upsert1000-gateway.txt
+++ b/testdata/experiment-upsert1000-gateway.txt
@@ -118,11 +118,11 @@ GC cycles: 1, total: 30.31ms, avg: 30.31ms, min: 30.31ms, max: 30.31ms
     start trace: 1 pauses, total 4.2µs, max 4.2µs
   Mark assist: 963 events across 836 goroutines, total: 93.39ms, max single: 1.26ms
     Top affected goroutines:
-      G1222     kv/kvserver.(*RaftTransport).raftMessageBatch.func1 95 assists, total 11.64ms, max 1.26ms @ t=4266ms
-      G1012     internal/transport.(*http2Client).reader 7 assists, total 1.05ms, max 313.7µs @ t=4255ms
-      G1285     kv/kvserver.(*RaftTransport).startProcessNewQueue.func3 7 assists, total 715.2µs, max 139.8µs @ t=4252ms
-      G916      util/stop.(*Stopper).RunAsyncTaskEx.func1 4 assists, total 594.2µs, max 296.7µs @ t=4250ms
-      G919      util/stop.(*Stopper).RunAsyncTaskEx.func1 4 assists, total 566.5µs, max 210.7µs @ t=4250ms
+      g1222     kv/kvserver.(*RaftTransport).raftMessageBatch.func1 95 assists, total 11.64ms, max 1.26ms @ t=4266ms
+      g1012     internal/transport.(*http2Client).reader 7 assists, total 1.05ms, max 313.7µs @ t=4255ms
+      g1285     kv/kvserver.(*RaftTransport).startProcessNewQueue.func3 7 assists, total 715.2µs, max 139.8µs @ t=4252ms
+      g916      util/stop.(*Stopper).RunAsyncTaskEx.func1 4 assists, total 594.2µs, max 296.7µs @ t=4250ms
+      g919      util/stop.(*Stopper).RunAsyncTaskEx.func1 4 assists, total 566.5µs, max 210.7µs @ t=4250ms
   Scheduling latency during GC vs normal:
                    count      p50        p99        max       
     During GC:     4969       74.6µs     7.51ms     9.44ms    
diff --git a/testdata/experiment-upsert1000-leaseholder.txt b/testdata/experiment-upsert1000-leaseholder.txt
index bcd3cdd..775aafb 100644
--- a/testdata/experiment-upsert1000-leaseholder.txt
+++ b/testdata/experiment-upsert1000-leaseholder.txt
@@ -192,11 +192,11 @@ GC cycles: 2, total: 88.55ms, avg: 44.27ms, min: 31.41ms, max: 57.14ms
     start trace: 1 pauses, total 49.0µs, max 49.0µs
   Mark assist: 1039 events across 698 goroutines, total: 97.13ms, max single: 1.75ms
     Top affected goroutines:
-      G1046     pkg/ts.(*poller).start.func1             97 assists, total 9.18ms, max 1.75ms @ t=9935ms
-      G2504794  cockroachdb/pebble.(*DB).flush           20 assists, total 5.54ms, max 1.67ms @ t=9944ms
-      G1055     util/stop.(*Stopper).RunAsyncTaskEx.func1 46 assists, total 3.53ms, max 181.4µs @ t=9923ms
-      G718      util/stop.(*Stopper).RunAsyncTaskEx.func1 40 assists, total 3.50ms, max 354.9µs @ t=9938ms
-      G720      util/stop.(*Stopper).RunAsyncTaskEx.func1 38 assists, total 2.81ms, max 149.8µs @ t=9927ms
+      g1046     pkg/ts.(*poller).start.func1             97 assists, total 9.18ms, max 1.75ms @ t=9935ms
+      g2504794  cockroachdb/pebble.(*DB).flush           20 assists, total 5.54ms, max 1.67ms @ t=9944ms
+      g1055     util/stop.(*Stopper).RunAsyncTaskEx.func1 46 assists, total 3.53ms, max 181.4µs @ t=9923ms
+      g718      util/stop.(*Stopper).RunAsyncTaskEx.func1 40 assists, total 3.50ms, max 354.9µs @ t=9938ms
+      g720      util/stop.(*Stopper).RunAsyncTaskEx.func1 38 assists, total 2.81ms, max 149.8µs @ t=9927ms
   Scheduling latency during GC vs normal:
                    count      p50        p99        max       
     During GC:     9730       79.7µs     16.28ms    21.76ms   
diff --git a/testdata/single-node-lowcpu-gcassist.txt b/testdata/single-node-lowcpu-gcassist.txt
index e3ed975..f7f183c 100644
--- a/testdata/single-node-lowcpu-gcassist.txt
+++ b/testdata/single-node-lowcpu-gcassist.txt
@@ -16,11 +16,11 @@ GC cycles: 2, total: 25.78ms, avg: 12.89ms, min: 11.62ms, max: 14.16ms
     start trace: 1 pauses, total 4.5µs, max 4.5µs
   Mark assist: 72 events across 30 goroutines, total: 33.43ms, max single: 3.48ms
     Top affected goroutines:
-      G1068065  sql/pgwire.(*Server).serveImpl.func4     4 assists, total 4.72ms, max 3.25ms @ t=73ms
-      G1067930  sql/pgwire.(*Server).serveImpl.func4     3 assists, total 4.38ms, max 3.48ms @ t=72ms
-      G1068084  sql/pgwire.(*Server).serveImpl.func4     5 assists, total 3.78ms, max 3.24ms @ t=73ms
-      G1058917  sql/pgwire.(*Server).serveImpl.func4     6 assists, total 3.50ms, max 1.64ms @ t=71ms
-      G1068213  sql/pgwire.(*Server).serveImpl.func4     6 assists, total 3.50ms, max 1.68ms @ t=75ms
+      g1068065  sql/pgwire.(*Server).serveImpl.func4     4 assists, total 4.72ms, max 3.25ms @ t=73ms
+      g1067930  sql/pgwire.(*Server).serveImpl.func4     3 assists, total 4.38ms, max 3.48ms @ t=72ms
+      g1068084  sql/pgwire.(*Server).serveImpl.func4     5 assists, total 3.78ms, max 3.24ms @ t=73ms
+      g1058917  sql/pgwire.(*Server).serveImpl.func4     6 assists, total 3.50ms, max 1.64ms @ t=71ms
+      g1068213  sql/pgwire.(*Server).serveImpl.func4     6 assists, total 3.50ms, max 1.68ms @ t=75ms
   Scheduling latency during GC vs normal:
                    count      p50        p99        max       
     During GC:     869        4.5µs      456.6µs    1.06ms