The s_aturn Performancemonitor s_mon

  • s_mon collects, in addition to the load test, metrics, which represent the test system
  • The results are stored in the s_aturn repository
  • The evaluation is done by correlation of response times and response time trends of s_aturn
  • To determine irregularities, further analysis is performed by s_analyze

Evaluations of s_mon

  • CPU
    • user, system, nice, total
  • Main memory
    • Memory-Size total, used absolut/percentage
    • SWAP-Size total, cached, used absolut/percentage
  • File system
    • Size
    • Occupancy absolut/prozentual 
  • I/O
    • Number of summarized read/write-Requests/sec
    • Number read/write-Requests/sec
    • Sectors read/sec write/sec
    • KByte read/sec write/sec
    • Size[in sectors] of Requests
    • Queue-length of Requests
    • Servicetime
    • CPU time, while I/O-Requests reach the device
  • Network
    • Packages in/out
    • Bytes in/out
    • Errors
    • Collisions
    • Number of dropped packages in/out
    • Number of compressed-packages in/out
    • Number of received multicast-frames
    • Number of transmission delays
  • Prozesse
    • CPU load
    • Storage occupancy