[Q] cpu is full.. 100%

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parkchangsoon - 28 Jun 2004 03:59 GMT

os : win2000
sql : sql2000 enterprise

table name : job
I created fulltext catalog
table is job column name : title

full population is every sunday am 5:00
incremental population is every 2hours from 7am to next day 3am

whenever server is running the both population, cpu is full 100%(see the
task manager )

Question : can i reduce the cpu use?

the columns are updated frequently are readcnt of job table

if i remove the readcnt column, the cpu use will reduce?

thanks...

below is the result of sp_spaceused job

name rows reserved data index_size unused
------------------------------------------------------------
Jobs 259845 468808 KB 214264 KB 28128 KB 226416 KB

column_name type
------------------------
title varchar(100)
findPrsn tinyint
ageZn varchar
applyRght varchar
emplrId varchar
seq int
readCnt int
sido tinyint
workTyp char
applyDcmnt varchar
findYmd2 smalldatetime
gugun tinyint
finishYmd bit
ymd smalldatetime
particular char
position varchar
logo varchar
endymd smalldatetime
jobtype1 tinyint
jobtype2 tinyint
jobtype3 tinyint
paytype char
pay1 int
pay2 bit
suprise tinyint
ts timestamp
visible bit
createdYmd smalldatetime

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John Kane - 28 Jun 2004 07:22 GMT

parkchangsoon,
The limited duration high CPU usage you are seeing during your scheduled
Incremental Population is expected and normal as there is a lot of internal
work being processed that is not only CPU intensive, but memory and disk i/o
intensive, but only for specific durations. You can reduce the priority of
the MSSearch service via sp_fulltext_service 'resource_usage' <value>, where
<value> is by default set to 3, and set it to 1 (background). However, this
will have the affect of causing the Incremental Population to take much
longer time to complete.

Since you are using SQL Server 2000, I'd highly recommend that you look at
"Change Tracking" and "Updated Index in Background" (see the BOL for more
info on Change Tracking) as this will eliminate the need for your scheduled
Incremental Population and allow your FT Catalog to be updated in near
real-time as the FT-enabled column is updated. This will eliminate the high
cpu usage you are seeing during the scheduled Incremental Population.

Regards,
John

> os : win2000
> sql : sql2000 enterprise
[quoted text clipped - 53 lines]
> visible bit
> createdYmd smalldatetime

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