Red_Hat_Enterprise_Linux 5 SystemTap_Beginners

[ Pobierz całość w formacie PDF ]

- @max (integer extractor), Computing for Statistical Aggregates
- @min (integer extractor), Computing for Statistical Aggregates
- @sum (integer extractor), Computing for Statistical Aggregates
- adding values to statistical aggregates, Computing for Statistical Aggregates
- count (operator), Computing for Statistical Aggregates
- extracting data collected by statistical aggregates, Computing for Statistical
Aggregates
computing for timestamp deltas
- reading values from arrays
- array operations, Reading Values From Arrays
73
Red Hat Enterprise Linux 5 SystemTap Beginners Guide
conditional operators
- conditional statements
- handlers, Conditional Statements
conditional statements, using arrays in
- array operations, Using Arrays in Conditional Statements
- testing for array membership, Using Arrays in Conditional Statements
CONFIG_HZ, computing for, Variables
contended user-space locks (futex contentions), identifying
- examples of SystemTap scripts, Identifying Contended User-Space Locks
copy fault
- runtime errors/warnings
- understanding SystemTap errors, Run Time Errors and Warnings
count operator
- computing for statistical aggregates
- array (operator), Computing for Statistical Aggregates
counting function calls
- examples of SystemTap scripts, Counting Function Calls Made
CPU ticks
- examples of SystemTap scripts, Determining Time Spent in Kernel and User Space
cpu()
- functions, Systemtap Handler/Body
cross-compiling, Generating Instrumentation for Other Computers
cross-instrumentation
- advantages of, Generating Instrumentation for Other Computers
- building kernel modules from SystemTap scripts, Generating Instrumentation for Other
Computers
- configuration
- host system and target system, Generating Instrumentation for Other Computers
74
Revision History
- generating instrumentation from SystemTap scripts, Generating Instrumentation for Other
Computers
- host system, Generating Instrumentation for Other Computers
- instrumentation module, Generating Instrumentation for Other Computers
- target kernel, Generating Instrumentation for Other Computers
- target system, Generating Instrumentation for Other Computers
ctime()
- functions, Systemtap Handler/Body
ctime(), example of usage
- script examples, Summarizing Disk Read/Write Traffic
cumulative I/O, tracking
- examples of SystemTap scripts, Track Cumulative IO
cumulative virtual file system reads, tallying
- processing multiple elements in an array
- array operations, Processing Multiple Elements in an Array
D
delete operator
- clearing arrays/array elements
- array operations, Clearing/Deleting Arrays and Array Elements
determining architecture notation, Generating Instrumentation for Other Computers
determining the kernel version, Installing Required Kernel Information RPMs
determining time spent in kernel and user space
- examples of SystemTap scripts, Determining Time Spent in Kernel and User Space
device I/O, monitoring
- examples of SystemTap scripts, I/O Monitoring (By Device)
device number of a file (integer format)
- examples of SystemTap scripts, Monitoring Reads and Writes to a File
disk I/O traffic, summarizing
- script examples, Summarizing Disk Read/Write Traffic
75
Red Hat Enterprise Linux 5 SystemTap Beginners Guide
division by 0
- runtime errors/warnings
- understanding SystemTap errors, Run Time Errors and Warnings
documentation goals
- Introduction, Documentation Goals
E
embedded code in unprivileged script
- parse/semantics error
- understanding SystemTap errors, Parse and Semantic Errors
empty unique keys
- reading values from arrays
- array operations, Reading Values From Arrays
end
- Events, Event
errors
- parse/semantics error, Parse and Semantic Errors
- embedded code in unprivileged script, Parse and Semantic Errors
- expected symbol/array index expression, Parse and Semantic Errors
- grammatical/typographical script error, Parse and Semantic Errors
- guru mode, Parse and Semantic Errors
- invalid values to variables/arrays, Parse and Semantic Errors
- libdwfl failure, Parse and Semantic Errors
- no match for probe point, Parse and Semantic Errors
- non-global arrays, Parse and Semantic Errors
- probe mismatch, Parse and Semantic Errors
- type mismatch for identifier, Parse and Semantic Errors
- unresolved function call, Parse and Semantic Errors
- unresolved target-symbol expression, Parse and Semantic Errors
- unresolved type for identifier, Parse and Semantic Errors
- variable modified during 'foreach', Parse and Semantic Errors
- runtime errors/warnings, Run Time Errors and Warnings
- aggregate element not found, Run Time Errors and Warnings
- aggregation overflow, Run Time Errors and Warnings
- copy fault, Run Time Errors and Warnings
- division by 0, Run Time Errors and Warnings
- MAXACTION exceeded, Run Time Errors and Warnings
76
Revision History
- MAXNESTING exceeded, Run Time Errors and Warnings
- number of errors: N, skipped probes: M, Run Time Errors and Warnings
- pointer dereference fault, Run Time Errors and Warnings
event types
- Understanding How SystemTap Works, Understanding How SystemTap Works
Events
- asynchronous events, Event
- begin, Event
- end, Event
- examples of synchronous and asynchronous events, Event
- introduction, Event
- kernel.function("function"), Event
- module("module"), Event
- synchronous events, Event
- syscall.system_call, Event
- timer events, Event
- vfs.file_operation, Event
- wildcards, Event
events and handlers, Understanding How SystemTap Works
events wildcards, Event
example
- introduction
- arrays, Associative Arrays
example of multiple command-line arguments
- examples of SystemTap scripts, Call Graph Tracing
examples of synchronous and asynchronous events
- Events, Event
examples of SystemTap scripts, Useful SystemTap Scripts
- call graph tracing, Call Graph Tracing
- CPU ticks, Determining Time Spent in Kernel and User Space
- ctime(), example of usage, Summarizing Disk Read/Write Traffic
- determining time spent in kernel and user space, Determining Time Spent in Kernel and
User Space
- file device number (integer format), Monitoring Reads and Writes to a File
- futex system call, Identifying Contended User-Space Locks
- identifying contended user-space locks (i.e. futex contentions), Identifying Contended
User-Space Locks
- if/else conditionals, alternative syntax, Network Profiling
77
Red Hat Enterprise Linux 5 SystemTap Beginners Guide
- inode number, Monitoring Reads and Writes to a File
- monitoring changes to file attributes, Monitoring Changes to File Attributes
- monitoring device I/O, I/O Monitoring (By Device)
- monitoring I/O time, Tracking I/O Time For Each File Read or Write
- monitoring incoming TCP connections, Monitoring Incoming TCP Connections
- monitoring polling applications, Monitoring Polling Applications
- monitoring reads and writes to a file, Monitoring Reads and Writes to a File
- monitoring system calls, Tracking Most Frequently Used System Calls
- monitoring system calls (volume per process), Tracking System Call Volume Per Process
- multiple command-line arguments, example of, Call Graph Tracing [ Pobierz całość w formacie PDF ]

Podstrony