Performance Toolkit for VM Feature FL730

Performance Toolkit for VM provides enhanced capabilities for a z/VM systems programmer, system operator, or performance analyst to monitor and report performance data. Offered as a priced optional feature of z/VM, Performance Toolkit for VM is derived from the FCON/ESA program (5788-LGA), which was not available in some countries.

Use Performance Toolkit to reduce data from the z/VM monitor and produce reports and history files.


In September 2022 the z/VM 7.3 GA edition of Performance Toolkit became available. The following commands, reports, or other facilities are changed, or their documentation in the reference book is updated.

  • The default locations of PERFOUT and MONDCSS were changed.
  • FCX108 DEVICE
  • FCX168 DEVLOG
  • FCX180 SYSCONF
  • FCX249 SCSI
  • FCX250 SCSILOG
  • FCX301 DSVBKACT
  • FCX329 VOLUME
  • FCX330 VOLLOG