Index_R


R

RAM disk technology
function of, 130
raw file systems vs. nonraw file systems, 435
recvspace attribute
setting for TCP send and receive buffer, 270
redundancy
five progressive levels of in an organization, 36 “39
redundancy paths
recommended for WebSphere-to-database networking, 143
regedit. See Registry Editor tool (regedit)
Registry Editor tool (regedit)
changing setting within the registry with, 252 “255
changing the TCPTimedWaitDelay value with, 254 “255
relational database platform
key points about sizing, 431 “435
Remote Method Invocation (RMI) connections
teardown of vs. lightweight connections, 270 “271
repositories and data stores
in WebSphere 5, 77 “78
repository database failover
configuration issues in WebSphere 4, 356 “358
resiliency. See availability
Resource Analyzer tool
checking for I/O time-outs with, 392 “393
example screen, 514
features from a profiling perspective, 515
function of, 513 “515
vs. HPjmeter and JProbe tools, 515
for monitoring and testing TIME_WAIT state, 390
for monitoring operational aspects of applications, 244
for monitoring thread values in WebSphere 4, 387 “389
response time
decrease in perceived for user or customer, 8 “9
response times
effect of concurrent and registered users on, 236
example of an end-to-end measurement, 235
testing of for an application, 234 “236
RetryInterval
setting in WebSphere 5, 331 “332
tuning, 325
Return on Investment (ROI), 19
an overview, 23 “24
vs. Total Cost of Ownership (TCO), 23
RISC-based processors
cost of vs. CISC or x86 processors, 97
RISC-based UltraSPARC processors vs. Complex Instruction Set Computing (CISC)-based processors, 96
RMI-IIOP, 168
vs. Java IIOP, 456
ROI. See Return on Investment (ROI)
round- robin load distribution model, 317 “318
Route directive section
in the HTTP plug-in configuration file, 57 “58
RRDtool
monitoring tool (graphing), 245
RS64 processor family
architecture and function of, 112 “113
rs.close() command
closing the result set object with, 421
rules
building block for WebSphere application environments, 155 “157
Run queue
in Unix, 476



Maximizing Performance and Scalability with IBM WebSphere
Maximizing Performance and Scalability with IBM WebSphere
ISBN: 1590591305
EAN: 2147483647
Year: 2003
Pages: 111
Authors: Adam G. Neat

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