On Fri, 1 Feb 2008 11:35:42 -0500, Knutson, Sam <[EMAIL PROTECTED]> wrote:
>
>CLASS NAME(CSVLLA) /* CLASS NAME FOR LIBRARY LOOKASIDE */
> EMAJ(LLA) /* MAJOR NAME FOR LIBRARY LOOKASIDE */
> MAXVIRT(65536) /* MAXVIRT 65536 4K BLOCKS */
> /* = 256MB */
>/* */
>CLASS NAME(IRRGMAP) /* OPENMVS-RACF GMAP TABLE */
> EMAJ(GMAP) /* MAJOR NAME OF IRRGMAP CLASS */
>/* */
>/* */
>CLASS NAME(IRRSMAP) /* OPENEDITION SECURITY PACKET */
> EMAJ(SMAP) /* MAJOR NAME OF IRRSMAP CLASS */
>/* */
>/* */
>CLASS NAME(IRRUMAP) /* OPENMVS-RACF UMAP TABLE */
> EMAJ(UMAP) /* MAJOR NAME OF IRRSMAP CLASS */
>/* */
>/* */
>CLASS NAME(IRRGTS) /* CLASS NAME FOR RACF GTS */
> EMAJ(GTS) /* MAJOR NAME OF IRRGTS CLASS */
> MAXVIRT(256) /* MAXVIRT = 256 4K BLOCKS */
> /* = 1MB */
>/* */
>/* */
>CLASS NAME(IRRACEE) /* CLASS NAME FOR RACF ACEE CACHE */
> EMAJ(ACEE) /* MAJOR NAME OF IRRACEE CLASS */
> MAXVIRT(8192) /* MAXVIRT = 8192 4K BLOCKS */
> /* = 32MB */
>
Ditto here but I also have "static" CLIST liraries in IKJEXEC class (sysres or
isv libs that don't change) and catalogs in the IGGCAS class. We don't
use ECS anywhere here (yet). Some environments share between sysplexes
so it will never be an option there.
>
>Look at the SMF Type 41 records.
>
>Easy performance boost often is raise MAXVIRT on CSVLLA to avoid
>trimming.
>Many sites have never increased the MAXVIRT on CSVLLA even though they
>have added lots of real storage.
>
Right. Pretty easy to look at with MICS or MXG. Here is some sample
MXG code:
//STEP010 EXEC MXGSAS,WORK='50,50'
//SMF DD DSN=userid.SMF41,DISP=SHR
//SYSIN DD *
OPTIONS SOURCE LS=132;
%INCLUDE SOURCLIB(TYPE41);
RUN;
PROC SORT NODUP DATA=TYPE41VF OUT=T41;
BY SYSTEM SMF41CLS SMFTIME;
PROC PRINT LABEL SPLIT='*';
VAR SMFTIME SYSTEM SMF41LRG SMF41MVT SMF41USD
SMF41ADD SMF41DEL SMF41TRM VLFHITPC;
BY SYSTEM SMF41CLS;
ID SMF41CLS;
FORMAT SMFTIME DATETIME18.;
TITLE 'VITUAL LOOKASIDE FACILITY';
TITLE2 'AS REDUCED FROM SMF TYPE41';
FOOTNOTE 'ZELDEN-(MXG41VLF)';
Mark
--
Mark Zelden
Sr. Software and Systems Architect - z/OS Team Lead
Zurich North America / Farmers Insurance Group - ZFUS G-ITO
mailto:[EMAIL PROTECTED]
z/OS Systems Programming expert at http://expertanswercenter.techtarget.com/
Mark's MVS Utilities: http://home.flash.net/~mzelden/mvsutil.html
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