TPDC Manual (G06.24+)
Table Of Contents
- What’s New in This Manual
- About This Manual
- 1 TPDC Overview
- TPDC Components and Architecture
- Tandem Performance Data Collector (TPDC)
- Tandem Performance System File Label (TPSFL)
- Tandem Performance File Label (TPFL)
- Tandem Performance Load Measure (TPLM)
- Tandem Performance Load Data (TPLD)
- System Performance Analysis Using Measure (SPAM)
- Tandem Performance Deferred Processing (TPDP)
- Data Files (RWS, DWS, UWS)
- How TPDC Collects Data
- Example: Scheduling TPDC Data Collection
- TPDC Components and Architecture
- 2 Installing and Running TPDC
- 3 Using the Collected Data
- 4 Using the System Configuration Reports
- 5 Using the SPAM Performance Data Charts and Reports
- Overview of the Charts and Reports
- Performance Data Charts
- Acceleration Profiles of User Programs (AXLCHRT)
- Apportioned Program CPU Consumption (WKLOAD)
- Average CPU Utilization (ACUCHRT)
- Average Disc Utilization (ADUCHRT)
- Data Communications Line Overview (DATACOM)
- Disc Cache Performance (DCPCHRT)
- Disc File Block Splits Shares (BLKSPLT)
- Disc File I/O Activity Distribution (DFIODST)
- Disc File Overview (Alphabetic) (DFOATBL)
- Disc File Physical I/O Shares (DFPIOS)
- Disc File ‘Requests Blocked’ Shares (REQBLKD)
- Disc File System I/O Shares (DFSIOS)
- Disc I/Os per Second (DIOCHRT)
- Disc Response Time (DRTCHRT)
- EXPAND Communications Line Overview (EXPAND)
- Global Indicators (COVER)
- Logical Disc File I/O Wait Shares (LDFIOWT)
- SQL/MP Program Overview (SQLPROG)
- SQL/MP Statement Overview (SQLSTAT)
- Process Category Counts (PCOUNTS)
- Process/CPU Priority Distribution (PRIDIST)
- Program Disc File I/O Wait Shares (PGDIOWT)
- Program Logical File Open Shares (PGOPENS)
- Program Logical I/O Wait Shares (PGLIOWT)
- Program Overview (PGOVIEW)
- Program Spooler File I/O Wait Shares (PGSPLWT)
- Relative CPU Balance (RCBCHRT)
- Relative Disc Balance (RDBCHRT)
- TMF Overview (TMFVIEW)
- Performance Data Reports
- Busiest Disc Files (Logical I/O Wait Time, Overall) (IOWOVER)
- Busiest Disc Files (Logical I/Os, by Volume) (LIOBVOL)
- Busiest Disc Files (Physical I/Os, by Volume) (PIOBVOL)
- Busiest Disc Files (System I/Os, by Volume) (SIOBVOL)
- Busiest Processes (by CPU) (PBSYCPU)
- CPU Activity (CPUREPT)
- Disc Cache 1 (Activity, by Block Size) (CACHE1)
- Disc Process Activity (DPREPT)
- Disc Subsystem Activity (DSCREPT)
- EXPAND Network Line Activity (NETREPT)
- Global Indicators (COVER)
- Low Selectivity (Needle in a Haystack) SQL Table Access Report (HAYSTCK)
- Network System Activity (SYSREPT)
- New Process Creation Timeline (NEWPROC)
- PATHWAY System Processes (PATHWAY)
- Physical Disc I/O Activity (PDISCIO)
- Process Existence Timeline (PTIMLIN)
- Process Memory Utilization (by CPU) (PMEMCPU)
- Process Page Faults (by CPU) (PFLTCPU)
- Server Summary (from $RECEIVE File) (SERVICE)
- TMF Activity Report (TMFREPT)
- A Entity and Attribute Definitions
- B Cross-Reference of Enform Queries to Data Files
- C Enform Query Source File (QPGROUPS)
- Index

Using the SPAM Performance Data Charts and
Reports
Tandem Performance Data Collector (TPDC) Manual—526357-001
5-63
EXPAND Network Line Activity (NETREPT)
EXPAND Network Line Activity (NETREPT)
This 132-column report shows Expand network line activity. The report includes:
•
Requests per second
•
Input transfers per second
•
Output transfers per second
•
Read utilization (usually close to 100%)
•
Write utilization
•
User data output bits per second (after compression)
•
Level-2 output bits per second (link level)
•
User data input bits per second (before decompression)
•
Level-2 input bits per second (link level)
•
Compressed message size distributions
•
Output overhead (level-2 bytes versus user data bytes)
•
Input overhead (level-2 bytes versus user data bytes)
This report sums these values over the device name, because lines going down and
up again result in multiple Measure records per line. For multiline Expand paths, this
DISC SUBSYSTEM Activity Report for System \CSO (Release D20)
------------------------------
$Volume LDV RQ:sec IQlen IQmsec Blkd % (headings continued below)
======== === ------ ------ ------ ------
$AUDIT 25 .26 .00 10.8 (data continued below)
$DATA 15 1.27 .00 2.9
$DATA1 26 .72 .00 3.0
$DATA2 23 .71 .00 3.7
$DATA3 19 .56 .00 3.6
<--- CACHE:RQ ----> <--------- BUSY % --------> <--- I/Os PER REQUEST ---->
Hit Miss Flt ABF PPID PCU Total Read Write Seek Total Read Write Seek
---- ---- ---- --- ------ ---- ------ ------ ------ ------ ------ ------ ------ ------
1.13 .10 .00 02,055 %220 .10% .06% .03% .01% .28 .13 .08 .07
02,054 %321 .10% .06% .03% .01% .28 .12 .08 .07
1.15 .09 01,020 %214 .22% .19% .01% .01% .13 .10 .01 .02
1.05 .10 02,019 %222 .14% .12% .01% .01% .14 .11 .01 .02
1.05 .10 02,016 %016 .19% .13% .01% .05% .17 .11 .01 .04
1.06 .10 02,012 %010 .08% .06% .01% .01% .10 .07 .01 .02
02,012 %111 .07% .05% .01% .01% .08 .06 .01 .01