Total Bytes Total number of bytes read or written. Only those trace events that are relevant to logical and physical volumes are enabled. Seq Number of read sequences. Describes contents, if dealing with a logical volume; describes type, if dealing with a physical volume. Type of access pattern: If this option is specified, count number of snapshots of trace is collected with a gap of interval seconds between two snapshots. The default unit is MB.
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Number of pages written from the segment that is, paged out. In its normal mode, the filemon command runs in the fiilemon while one or more application programs or system commands are filejon run and monitored. The relevant trace hooks are listed when filemon is started with the -v flag.
You must use the -x flag along with the -A flag where the trace is collected until the specified user command finishes its execution.
Bytes Read Number of bytes read.
Volume names or flag values. This report is supported only in automated offline and manual offline modes.
Thread Id ID of the thread which opened the file. It combines the features of two legacy Sysinternals utilities, Filemon and Regmonand adds an extensive list of enhancements including rich and non-destructive filtering, comprehensive event properties such session IDs and user names, reliable process information, full filsmon stacks with integrated symbol support for each operation, simultaneous logging to a file, and much more.
For that reason, total logical volume utilization appears to be higher than total physical volume utilization.
Finally, detailed reports are generated for each of the file system levels being monitored. A sequence is a string of byte blocks that are written consecutively. For persistent segments, the name of the logical volume containing the corresponding file. There is one spiral track.
Total Bytes Total number of bytes read or written. ID of the thread which opened the file. There is one row for each reported file, segment, or volume.
Windows Sysinternals Administrator’s Reference The official guide to the Sysinternals utilities by Mark Russinovich and Aaron Margosis, including descriptions of all the tools, their features, how to use them for troubleshooting, and example real-world cases of their use.
Detailed Thread-wise Statistics Report. Also, it is wise to run gensyms at close to the same time that the system trace file is created, so that the system configuration is the same for both.
If another filemon or trace process is already running, the filemon command responds with the message: Most Active Segments Report. Total number of read operations happened on the file. Also, as a result of using the -d flag, monitoring is initially deferred until the trcon command is issued.
Number of lseek subroutine calls. The write-response time statistics.
Monitoring disk I/O
Number of write sequences. The -P flag causes the filemon command text and data pages to be pinned in memory for the duration of the monitoring period. Reports on files that were opened before the start of the trace daemon. Time spent in write operations. This option is valid only in automated offline mode with —O hot option specified.
If you combine this flag with the -A flag, the filemon command stores the trace data in the RootString. After this command, you can enter the unmonitored application programs and system commands to be run at this time, then enter: Overview of Process Monitor Capabilities Process Monitor includes powerful monitoring and filtering capabilities, including: Each of the described hotness reports is repeated multiple times based on the sort field.
Fileomn Size of the logical volume.