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Advanced O&M Command Reference

OceanStor 2800 V3 V300R006

This document is applicable to OceanStor 2800 V3. Based on the CLI, this document describes how to use various commands classified by functionsand how to set the CLI and manage the storage system through these commands. The document that you browse online matches the latest C version of the product. Click Download to download documents of other C versions.
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drvfc showperfstatic

drvfc showperfstatic

Function

The drvfc showperfstatic command is used to collect statistics on driver latencies.

Format

drvfc showperfstatic portid

Parameters

Parameter

Description

Value

portid

Port ID.

To obtain the value, run the "drvfc showportinfo" command.

Views

Diagnostic view

Usage Guidelines

None

Example

Display latency statistics.

admin:/diagnose>drvfc showperfstatic 0x110002 
Port:0x110002 total tgt-write:1507759 total tgt-read:1507737 
Average-Tgt Write:  
 DrvAllocTime:579  
 TgtAllocTime:39990  
 RdyScheduleTime:5470  
 DrvExecTime:86635  
 TgtExecTime:40360  
 RspScheduleTime:4656  
 DrvRspTime:82663  
 WriteTime:260357 
Max-Tgt Write:  
 DrvAllocTime:639  
 TgtAllocTime:6712231  
 RdyScheduleTime:362  
 DrvExecTime:20803  
 TgtExecTime:14838190  
 RspScheduleTime:111  
 DrvRspTime:228161  
 WriteTime:21800497 
Average-Tgt Read:  
 DrvAllocTime:579  
 TgtReadTime:40042  
 RspScheduleTime:5536  
 DrvRspTime:85234  
 ReadTime:131393 
Max-Tgt Read:  
 DrvAllocTime:634  
 TgtReadTime:15982486  
 RspScheduleTime:537  
 DrvRspTime:13852  
 ReadTime:15997509 
Port:0x110002 total ini-write:7831734 total ini-read:7831727 
Average-Ini Write: 
 DrvSendCmdTime:1554  
 HdDealTime:254243068  
 DrvDealRspTime:98  
 AllTime:254244720 
Max-Ini Write: 
 DrvSendCmdTime:1571  
 HdDealTime:34806457  
 DrvDealRspTime:79  
 AllTime:34807843 
Average-Ini Read: 
 DrvSendCmdTime:1390  
 HdDealTime:190647633  
 DrvDealRspTime:120  
 AllTime:190649144 
Max-Ini Read: 
 DrvSendCmdTime:1390  
 HdDealTime:210647633  
 DrvDealRspTime:151  
 AllTime:210649174

System Response

The following table describes the parameter meanings.

Parameter

Meaning

Port

Port ID.

total tgt-write

Total count of target write requests.

total tgt-read

Total counts of target read requests.

Average-Tgt Write

Average target write latency.

DrvAllocTime

Time required for the driver to post a read and write I/O request to the SCSI layer after receiving the request.

TgtAllocTime

Write allocation time of the service module.

RdyScheduleTime

Time required for the driver to send the xfer_ready message after receiving the message from the SCSI layer.

DrvExecTime

Time required for completing write I/Os after the driver sends the xfer_ready message.

TgtExecTime

Time required for the service module to write I/O data.

RspScheduleTime

Time required for the driver to receive response messages and invoke the response sending interface to send the messages.

DrvRspTime

Time required for the driver to successfully send response messages.

WriteTime

Total time of write I/Os.

Max-Tgt Write

Maximum target write latency.

TgtReadTime

Execution time of target read I/Os.

ReadTime

Total time of read I/Os.

Average-Tgt Read

Average target read latency.

Max-Tgt Read

Maximum target read latency.

total ini-write

Total count of initiator write requests.

total ini-read

Total count of initiator read requests.

Average-Ini Write

Average initiator write latency.

Max-Ini Write

Maximum initiator write latency.

Average-Ini Read

Average initiator read latency.

Max-Ini Read

Maximum initiator read latency.

DrvSendCmdTime

Time required for the initiator driver to deliver an I/O request to the chip after receiving the request from upper-layer applications.

HdDealTime

Time required for the initiator chip to complete data sending or receiving.

DrvDealRspTime

Response time required for the initiator driver to complete the processing of I/O requests.

AllTime

Total time of processing initiator write or read requests.

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Updated: 2019-07-12

Document ID: EDOC1000138381

Views: 716568

Downloads: 36

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