29.12.22.14 The system_process_stats_history Table

History table for system_process_stats.

mysql> select * from performance_schema.system_process_stats_history limit 3\G
*************************** 1. row ***************************
         TIMESTAMP: 2026-09-30 10:10:34
               PID: 2505
      PROCESS_NAME: mysqld
               TID: 2505
       THREAD_NAME: mysqld
             STATE: S
          UTIME_MS: 170
          STIME_MS: 330
         CUTIME_MS: 0
         CSTIME_MS: 0
       NUM_THREADS: 42
       VSIZE_BYTES: 3107442688
         RSS_BYTES: 513454080
      RSSLIM_BYTES: 18446744073709551615
         PROCESSOR: 2
DELAYACCT_BLKIO_MS: 0
     GUEST_TIME_MS: 0
    CGUEST_TIME_MS: 0
        READ_BYTES: 85598208
       WRITE_BYTES: 352256
*************************** 2. row ***************************
         TIMESTAMP: 2026-09-30 10:11:34
               PID: 2505
      PROCESS_NAME: mysqld
               TID: 2505
       THREAD_NAME: mysqld
             STATE: S
          UTIME_MS: 170
          STIME_MS: 330
         CUTIME_MS: 0
         CSTIME_MS: 0
       NUM_THREADS: 41
       VSIZE_BYTES: 3107442688
         RSS_BYTES: 513458176
      RSSLIM_BYTES: 18446744073709551615
         PROCESSOR: 2
DELAYACCT_BLKIO_MS: 0
     GUEST_TIME_MS: 0
    CGUEST_TIME_MS: 0
        READ_BYTES: 85598208
       WRITE_BYTES: 352256
*************************** 3. row ***************************
         TIMESTAMP: 2026-09-30 10:12:34
               PID: 2505
      PROCESS_NAME: mysqld
               TID: 2505
       THREAD_NAME: mysqld
             STATE: S
          UTIME_MS: 170
          STIME_MS: 330
         CUTIME_MS: 0
         CSTIME_MS: 0
       NUM_THREADS: 41
       VSIZE_BYTES: 3107442688
         RSS_BYTES: 513458176
      RSSLIM_BYTES: 18446744073709551615
         PROCESSOR: 2
DELAYACCT_BLKIO_MS: 0
     GUEST_TIME_MS: 0
    CGUEST_TIME_MS: 0
        READ_BYTES: 85598208
       WRITE_BYTES: 352256

The system_process_stats_history table has the same columns as system_process_stats.