IBM 000-8697 Manual de usuario descargar pdf (Pagina 573)

100

101

Utilities 7-95

Option Descriptions

-P Option

Use the -P option to obtain a count of big buffer reads, in addition to the

standard proﬁle counts. (Refer to page 2-55 for more details about big

buffers.)

The -P option displays the same information as the -p option, with the

addition of the BIGreads ﬁeld, which appears as the ﬁrst ﬁeld in the output.

-r Option

Use the -r option to cause the accompanying tbstat option(s) to execute

repeatedly after waiting the specified seconds between each execution. The

default value of seconds is 5. To end execution, press the DEL key or CTRL-C.

-R option

Use the -R option to display detailed information about the LRU buffer

queues.

For each queue, the display lists the number of buffers in the queue and the

number and percentage of buffers that have been modiﬁed. The following

example shows the output format:

LRU 0: 10 (100.0%) modified of 10 total.

LRU 1: 1 (12.5%) modified of 8 total.

dltouts increments each timethe distributed deadlock time-out value

is exceeded while a user process is waiting for a lock.

lchwaits increments when a process waits to gain access to a shared-

memory resource.

ckpwaits is the number of checkpoint waits.

compress increments each time a data page is compressed. (Refer to

page 2-133 for more details about how OnLine implements

page compression.)

BIGreads is the number of big buffer reads that have occurred.

1 2 ... 568 569 570 571 572 573 574 575 576 577 578 ... 701 702

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