cephfs_mirror: revert sync_duration to seconds

Fixes: https://tracker.ceph.com/issues/68131
Signed-off-by: Jos Collin <[email protected]>

Author: joscollin

src/tools/cephfs_mirror/PeerReplayer.cc

@@ -1687,7 +1687,7 @@ int PeerReplayer::do_sync_snaps(const std::string &dir_root) {
   double duration = 0;
   for (; it != local_snap_map.end(); ++it) {
     if (m_perf_counters) {
-      start = std::chrono::duration_cast<std::chrono::milliseconds>(clock::now().time_since_epoch()).count();
+      start = std::chrono::duration_cast<std::chrono::seconds>(clock::now().time_since_epoch()).count();
       utime_t t;
       t.set_from_double(start);
       m_perf_counters->tset(l_cephfs_mirror_peer_replayer_last_synced_start, t);
@@ -1706,7 +1706,7 @@ int PeerReplayer::do_sync_snaps(const std::string &dir_root) {
     }
     if (m_perf_counters) {
       m_perf_counters->inc(l_cephfs_mirror_peer_replayer_snaps_synced);
-      end = std::chrono::duration_cast<std::chrono::milliseconds>(clock::now().time_since_epoch()).count();
+      end = std::chrono::duration_cast<std::chrono::seconds>(clock::now().time_since_epoch()).count();
       utime_t t;
       t.set_from_double(end);
       m_perf_counters->tset(l_cephfs_mirror_peer_replayer_last_synced_end, t);