Network/roll wait time is high

Hi,
One of my dialog instance is showing high response time at SMLG.
When i am checking Dialog Overview at RZ20, network response time of this server is very high.
When i am checking the parts of response time at ST03, roll wait time is always around 70% for this instance.
(4.7,2003 server, SQL 2000)
Kindly suggest me to resolve this.
Regards,
Gayathry.

Hai,
Roll wait time means: During processing of some dialog steps, the user context may be rolled out; for example, during RFCs when the client is waiting for a response from the server. This wait time until the dialog step can continue is called the roll wait time.
try to check what RFC causes this, somtimes this may lead to rollfile overflow and in turn some background jobs might fail due to rollfile overflow.
Check SAP Notes:1100926 and 578118.
Regards,
Yoganand.V
Edited by: Yoganand Vedagiri on Mar 12, 2009 1:47 PM

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    Sorry for being late....
    I think there is only one or two query causing problem....is it true that if there is only one or two query causing problem that is if the query is taking near about 30% elaspsed time cpu does it have a impact on the performance of the db......
    SQL ordered by Reads for DB: ICAI  Instance: icai12  Snaps: 11 -12
    -> End Disk Reads Threshold:      1000
                                                         CPU      Elapsd
    Physical Reads  Executions  Reads per Exec %Total Time (s)  Time (s) Hash Value
          1,097,317           11       99,756.1   39.8   386.68   1778.96 1585476974
    SELECT NVL(TO_CHAR(A.DEH_APPLICATION_DT,'DD/MM/RRRR'), NULL ),NV
    L(TO_CHAR(A.DEH_DT,'DD/MM/RRRR'), NULL )   FROM OT_DAK_ENTRY_HEA
    D A,OT_DAK_ENTRY_DETL B,OT_FIRM_NAME_APPR_HEAD C  WHERE A.DEH_SY
    S_ID = B.DED_DEH_SYS_ID  AND B.DED_DAK_SYS_ID = C.FNAH_DED_SYS_I
    D  AND C.FNAH_SYS_ID =  (SELECT MAX(B.FNAH_SYS_ID)   FROM OT_FIR
            407,436            6       67,906.0   14.8   122.60    720.09 1414719916
    UPDATE OM_MEM_REG_HEAD SET MRH_MRN=:b1 WHERE MRH_SYS_ID = :b2
            407,436            6       67,906.0   14.8   122.54    720.00 1414796677
    UPDATE OT_DAK_ACTV_HISTORY SET DAH_REG_NO = :B1 WHERE DAH_REG_NO
    = :B3 AND TRUNC(DAH_ACTV_ED_DT ) <= TRUNC(:B2 ) AND DAH_ACTV_ST
    ATUS = 'C'
            288,612           23       12,548.3   10.5    61.05    312.13 3146526985
    Module: JDBC Thin Client
    BEGIN PACK_INSERT_INTERNET_TEST.IT_INSERT_MEM_ADD_CHG_REQ(:1,:2,
    :3,:4,:5,:6,:7,:8,:9,:10,:11,:12,:13); END;
            110,742            1      110,742.0    4.0    35.17    172.63 1517630850
    SELECT NVL(TO_CHAR(A.DEH_APPLICATION_DT,'DD/MM/RRRR'), NULL ),NV
    L(TO_CHAR(A.DEH_DT,'DD/MM/RRRR'), NULL )   FROM OT_DAK_ENTRY_HEA
    D A,OT_DAK_ENTRY_DETL B,OM_FIRM_OPENCLOSE_SO C  WHERE A.DEH_SYS_
    ID = B.DED_DEH_SYS_ID  AND B.DED_DAK_SYS_ID = C.FSO_DED_SYS_ID
    AND C.FSO_SYS_ID =  (SELECT MAX(B.FSO_SYS_ID)   FROM OM_FIRM_OPE
             90,155          104          866.9    3.3   255.47    986.07 4142254844
    SELECT LTRIM(RTRIM(DECODE(TIT_NAME,'MR.','CA.','MS.','CA.','MRS.
    ','CA.') || ' '  || MRH_FIRST_NAME  || ' '  || MRH_MIDDLE_NAME
    || ' '  || MRH_SUR_NAME  || ' '  || DECODE(MRH_APPR_UID, NULL ,
    NULL ,DECODE(MRH_MEM_STATUS,2, NULL ,DECODE(MRH_FELLOW_STATUS_YN
    ,'Y','FCA','ACA')))  || DECODE(MRH_RESI_STATUS,'A','
             82,002            1       82,002.0    3.0   121.61    459.95 2335688323
    SELECT 'X'   FROM OV_APPROVED_DOCUMENTS  WHERE APPR_DOC_TXN_CODE
    = :b1  AND APPR_DOC_NO = :b2  AND EXISTS  (SELECT 'X'   FROM OT
    DAKENTRY_HEAD A,OT_DAK_ENTRY_DETL B,OM_DAK C  WHERE A.DEH_SYS_
    ID = B.DED_DEH_SYS_ID  AND A.DEH_SYS_ID = APPR_DOC_SYS_ID  AND C
    .DAK_TXN_CODE = :b3  AND C.DAK_CHANGE_TYPE IN ( 'F'  ) AND B.DED
             65,494           12        5,457.8    2.4    23.18    137.86 3958290687
    SELECT MEP_DOC_STATUS   FROM OT_MEM_EMPLOYMENT  WHERE MEP_REF_SY
    S_ID = :b1  AND MEP_REF_FROM = 'MG'
             60,028            3       20,009.3    2.2    12.59    157.78 2405844617
    Module: JDBC Thin Client
    INSERT INTO IT_ADD_DTL (ADD_DT_ACK_NO, ADD_DT_SR_NO, ADD_DT_MRN,
    ADD_DT_TYPE, ADD_DT_LINE1, ADD_DT_LINE2, ADD_DT_LINE3, ADD_DT_L
    INE4, ADD_DT_CITY_CODE, ADD_DT_OTHER_CITY, ADD_DT_PIN_CODE, ADD_
    DT_TEL, ADD_DT_EMAIL, ADD_DT_OP_DT, ADD_DT_CL_DT, ADD_DT_CL_YN,
    ADD_DT_INCHG_MRN, ADD_CORR_DT_LINE1, ADD_CORR_DT_LINE2, ADD_CORR
             60,022            6       10,003.7    2.2    12.31    155.97 3242469259
    SQL ordered by Reads for DB: ICAI  Instance: icai12  Snaps: 11 -12
    -> End Disk Reads Threshold:      1000
    SQL ordered by Gets for DB: ICAI  Instance: icai12  Snaps: 11 -12
    -> End Buffer Gets Threshold:     10000
    -> Note that resources reported for PL/SQL includes the resources used by
       all SQL statements called within the PL/SQL code.  As individual SQL
       statements are also reported, it is possible and valid for the summed
       total % to exceed 100
                                                         CPU      Elapsd
      Buffer Gets    Executions  Gets per Exec  %Total Time (s)  Time (s) Hash Value
         12,271,784           58      211,582.5   25.4   484.35   1453.46   17574787
    SELECT /*+ INDEX (OM_COURSE_FEE OCF_CFC_CODE)  */DISTINCT CF_COU
    RSE_CODE   FROM OM_COURSE_FEE,OT_STUDENT_FEE_COL_HEAD,OT_STUDENT
    FEECOL_DETL  WHERE SFCH_SYS_ID = SFCD_SFCH_SYS_ID  AND SFCD_FE
    E_TYPE_CODE = CF_TYPE_CODE  AND CF_COURSE_CODE IN ( 'PE1','PE2',
    'CCT','CPT'  ) AND SFCH_TXN_CODE = :b1  AND SFCD_SUBSCRBE_JOURNA
          7,064,924          120       58,874.4   14.6   102.74    226.01 3102119461
    SELECT ROWID,AR_DT,AR_TXN_CODE,AR_NO,AR_AMD_NO,AR_REF_FROM,AR_RE
    F_TXN_CODE,AR_REF_NO,AR_DAK_CODE,AR_DED_SYS_ID,AR_COMP_CODE,AR_A
    CNT_YR,AR_AMD_DT,AR_AMD_UID,AR_AMD_RES_CODE,AR_REF_SYS_ID,AR_STU
    D_SRN,AR_APPL_DT,AR_ISSUE_DT,AR_ENROL_FRM_COURSE,AR_ENROL_DT,AR_
    JOURNAL_YN,AR_TYPE,AR_TITLE,AR_VACANCY_CODE,AR_MRH_MRN,AR_INDUST

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