Home | Previous Page | Next Page   Utility Reference > onstat: Monitor Database Server Operations > The onstat -g Monitoring Options >

onstat -g glo

Prints global multithreading information.

Example Output

Figure 35. onstat -g glo output
IBM Informix Extended Parallel Server Version 8.50.FN145 -- On-Line -- Up 01:55:02 
-- 101376 Kbytes
MT global info:
sessions threads  vps      lngspins
0        49       14       1       
          sched calls     thread switches yield 0   yield n   yield forever
total:    900100          898846          1238      27763     423778   
per sec:  327             325             2         12        151      
Virtual processor summary:
 class       vps       usercpu   syscpu    total   
 cpu         4         0.92      0.10      1.02    
 aio         4         0.02      0.02      0.04    
 lio         1         0.00      0.00      0.00    
 pio         1         0.00      0.00      0.00    
 adm         1         0.00      0.01      0.01    
 msc         1         0.00      0.00      0.00    
 fifo        2         0.00      0.00      0.00    
 total       14        0.94      0.13      1.07    
Individual virtual processors:
 vp    pid       class       usercpu   syscpu    total   
 1     2599      cpu         0.25      0.06      0.31    
 2     2602      adm         0.00      0.01      0.01    
 3     2603      cpu         0.23      0.00      0.23    
 4     2604      cpu         0.21      0.03      0.24    
 5     2605      cpu         0.23      0.01      0.24    
 6     2606      lio         0.00      0.00      0.00    
 7     2607      pio         0.00      0.00      0.00    
 8     2608      aio         0.02      0.02      0.04    
 9     2609      msc         0.00      0.00      0.00    
 10    2610      fifo        0.00      0.00      0.00    
 11    2611      fifo        0.00      0.00      0.00    
 12    2612      aio         0.00      0.00      0.00    
 13    2613      aio         0.00      0.00      0.00    
 14    2614      aio         0.00      0.00      0.00    
                 tot         0.94      0.13      1.07

Output Description

MT Global Info
sessions
Number of active sessions
threads
Number of active threads
vps
Number of active virtual processors
lngspins
Number of times a thread had to spin more than 10,000 times to acquire a latch on a resource
MT Yield Info
sched calls
The total/per second calls made by the VPs
thread switches
The total/per second number of thread switches performed
yield 0
The total/per second number of yield 0 calls performed
yield n
The total/per second number of yield n calls performed
yield forever
The total/per second number of yield forever calls performed
Virtual Processor Summary
class
The type of virtual processor
vps
The number of instances of this class of vp
usercpu
The total user time this class of vp has spent running on the cpu in seconds
syscpu
The total system time this class of vp has spent running on the cpu in seconds
total
The total number of virtual processors, user time and system time
Individual Virtual Processors
vp
Virtual processor number
pid
Process id of this oninit process
class
Virtual processor class
usercpu
Total user time the vp has run on the cpu
syscpu
Total system time the vp has run on the cpu
total
Total number of vps, user time, and system time
Home | [ Top of Page | Previous Page | Next Page | Contents | Index ]