mysql数据库磁盘io高的排查是怎样的

2527 | xxxx | 172.xxxx:35072 | xxxx | Query | 0 | update | insert ignore into `xxxxannotations` (`trace_ |

| 2528 |xxxn | 172.xxxx:37270 | xxxx | Query | 0 | update | insert ignore into `xxxxannotations` (`trace_id`, `s

| 2530 | xxxx | 172.xxxx:44210 | xxxx | Query | 0 | update | insert into `xxxx_spans` (`trace_id`, `id`, `debug`, `start_ts`, `name

| 2531 |xxxx | 172.xxxx:45910 | xxxx | Query | 0 | query end | insert ignore into `xxxx_annotations`4', ', -1408108278, 8031) |

| 2532 | xxx | 172.xxxx:58890 | xxxx | Sleep | 0 | | NULL

mysql> show engine innodb status \G

---TRANSACTION 1557551308, not started flushing log

---TRANSACTION 1557551309, not started flushing log

---TRANSACTION 1557551310, not started flushing log

---TRANSACTION 1557551311, not started flushing log

---TRANSACTION 1557551313, not started flushing log

---TRANSACTION 1557551304, not started flushing log

............

mysql> show variables like '%innodb_log_file_size%';

+----------------------+----------+

| Variable_name | Value |

+----------------------+----------+

| innodb_log_file_size | 50331648 |

+----------------------+----------+

1 row in set (0.00 sec)

mysql> show engine innodb status \G

--------

FILE I/O

--------

..........

Pending flushes (fsync) log: 1; buffer pool: 0

1 pending preads, 0 pending pwrites

................

LOG

---

Log sequence number 988322448590

Log flushed up to 988322444468

Pages flushed up to 988311239867

Last checkpoint at 988309561881

1 pending log writes, 0 pending chkp writes

23371463 log i/o's done,  132.33 log i/o's/second