Virtual Server: Execution time very different.

I installed Oracle 9.2.0.4.0 Enterprise on a Windows 2003 se.
Then, I installed Oracle 9.2.0.4.0 Enterprise on Windows 2003 Enterprise SP1, a virtual server with 32 GB RAM end 8 CPU (4 really).
Both installations, have been successfully ended.
On the first server i executed a select based on a distinct statement on a indexed field of a table. I obtained the query result in 1,3 seconds.
On the second server i executed the same query but i obtained the query result in over 120 seconds. Incredible? Why?
The database structure is the same, the indexes and the primary keys are the same.
Thank you in advance.

Incredible ?
Not really...
A virtual server is not a real server. virtual is necessary slower than real server.
Then setting more CPUs than there are in real is not really a good idea.... :/
How is set up the real server ?
the virtual server ?

Similar Messages

DTP Execution Time is different when run by PC & Manually

Dear Experts,
Could you please help me in finding the answers for the below questions.
1. Execution time for DTp is higher when ran manually and using process chain. What can be the possible reasons & whic one is correct?
2. Total Exceution time mentioned in the DTP details ta is less when added the total time for each data package. What are the reason for that difference. Which is correct?
Thanks & regards,
Ganesh Thota

Hi,
1)Execution time depends on various factors like the number of processes running on the system on a particular time(Ucan check it in SM37)
in Process chain an instance of the particular process type is created( in your case process type is DTP even though we execute DTP in PC it originally executes the DTP in RSA1 .. i.e., an instance is created)
2)the thing is when u execute a DTP data is transferred in the form of Packages the mismatch in the execution type is because u might have added the timings of each data package
but when you check clearly : 2-3 data packages in DTP start at the same time so you should not add the time taken of each individual data package to get the total time of the DTP
Hope it answers you questions
Regards,
MADhu

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Query Execution time is different in DEV and PROD

Hi,
Query is as follows:
SELECT DISTINCT tds.*
FROM testdev.contract_trans npq, testdev.contract_trans_group tds
WHERE npq.contract_trans_group_id = tds.id
AND tds.contract_id <> :contractid
AND tds.tradingday_date BETWEEN :fromtradingday AND :totradingday
AND tds.category_id = :categoryid
AND tds.state_id = :entitystateid
AND EXISTS
(SELECT *
FROM testdev.contract_trans npq1,
testdev.contract_trans_group tds1
WHERE npq1.contract_trans_group_id = tds1.id
AND tds1.contract_id = :contractid
AND (npq.network_point_id = npq1.network_point_id
OR (npq.network_point_id IS NULL
AND npq1.network_point_id IS NULL))
AND tds.tradingday_date = tds1.tradingday_date
AND tds.category_id = tds1.category_id
AND tds.state_id = tds1.state_id)
This query is taking 500ms of time to execute in DEV and when it is executing in Prod it is execuiting in 1.10min. I also analyze the table as well as use hint on this. But the time is not getting reduce in Prod. I compare the tables of dev and prod but data is on shink.
row execution plan for DEV :
call count cpu elapsed disk query current rows
Parse 1 0.00 0.01 0 0 0 0
Execute 1 1.62 1.57 0 0 0 0
Fetch 2 0.81 0.78 0 1208 0 364
total 4 2.43 2.37 0 1208 0 364
Misses in library cache during parse: 1
Optimizer mode: CHOOSE
Parsing user id: 5 (SYSTEM)
Rows Row Source Operation
364 HASH UNIQUE (cr=1208 pr=0 pw=0 time=783194 us)
545 FILTER (cr=1208 pr=0 pw=0 time=775342 us)
545 HASH JOIN (cr=1208 pr=0 pw=0 time=774670 us)
99432 TABLE ACCESS FULL CONTRACT_TRANS (cr=382 pr=0 pw=0 time=465 us)
18225 HASH JOIN (cr=826 pr=0 pw=0 time=359469 us)
1000 HASH JOIN (cr=445 pr=0 pw=0 time=108528 us)
46 TABLE ACCESS FULL CONTRACT_TRANS_GROUP (cr=223 pr=0 pw=0 time=48274 us)
675 TABLE ACCESS FULL CONTRACT_TRANS_GROUP (cr=222 pr=0 pw=0 time=51497 us)
99432 TABLE ACCESS FULL CONTRACT_TRANS (cr=381 pr=0 pw=0 time=182 us)
And row execution plan for PROD:
call count cpu elapsed disk query current rows
Parse 1 0.00 0.00 0 0 0 0
Execute 1 0.00 0.00 0 0 0 0
Fetch 2 80.03 78.40 219 319722 0 364
total 4 80.03 78.41 219 319722 0 364
Misses in library cache during parse: 0
Optimizer mode: CHOOSE
Parsing user id: 5 (SYSTEM)
Rows Row Source Operation
364 HASH UNIQUE (cr=319722 pr=219 pw=0 time=78406184 us)
545 FILTER (cr=319722 pr=219 pw=0 time=78385884 us)
545 HASH JOIN (cr=319722 pr=219 pw=0 time=78384017 us)
675 TABLE ACCESS FULL CONTRACT_TRANS_GROUP (cr=222 pr=219 pw=0 time=328724 us)
2380118 NESTED LOOPS (cr=319500 pr=0 pw=0 time=71521450 us)
837 HASH JOIN (cr=603 pr=0 pw=0 time=315980 us)
46 TABLE ACCESS FULL CONTRACT_TRANS_GROUP (cr=222 pr=0 pw=0 time=48647 us)
99432 TABLE ACCESS FULL CONTRACT_TRANS (cr=381 pr=0 pw=0 time=100990 us)
2380118 TABLE ACCESS FULL CONTRACT_TRANS (cr=318897 pr=0 pw=0 time=70077111 us)
Can any body help me out why this is happening?
Regards,
Saptadip

Welcome to the forum.
Please edit your post and use the {noformat}{noformat} tag, so your examples will stay formatted and indented.
Put the tag before and after all text you want to stay formatted.
{noformat}..{noformat} - Displays everything between the tags as programming code.
The query on PROD is doing lots more of reads/processing much more rows then on DEV.
For example, take table CONTACT_TRANS:
- less than 100,000 rows on DEV
vs
more than 2,300,000 on PROD.
but data is on shink.What does that mean?

Query Execution time - Elapsed time v Actual time taken

Hi All,
I have this scenario where I am querying a single table with the following results. It is a very heavy query in that there are multiple aggregate functions and multiple unions on it. Even if the query is written poorly (i doubt it is) why would the actual
time taken to execute the query be much more than the statistics provided through the following commands?
SET STATISTICS IO ON;
SET STATISTICS TIME ON;
Attached are the stats provided for the relevant query in question.
Table '123456789_TEMP_DATA'. Scan count 178, logical reads 582048, physical reads 0, read-ahead reads 0, lob logical reads 0, lob physical reads 0, lob read-ahead reads 0.
Table 'Worktable'. Scan count 0, logical reads 0, physical reads 0, read-ahead reads 0, lob logical reads 0, lob physical reads 0, lob read-ahead reads 0.
SQL Server Execution Times:
CPU time = 936 ms, elapsed time = 967 ms.
2014-01-06 17:36:41.383
Now, although the CPU Time/Elapsed time shows that it takes less than a second, it actually takes more than 15 seconds to fetch the results. (This is the actual time that you get on the bottom bar of the Query pane as well.)
What is the reason? Why is it that there is such a big discrepancy between the numbers? How can I improve this situation?
Thanks!

Yes. I am returning a huge number of rows to the client.
The query is simply against a single table.
Select
'First Record',AVG(COLUMN1),STDEV(COLUMN1
),COUNT(COLUMN1)
FROM [TABLE1] WHERE (SOME CONDITION)
UNION ALL
Select 'Second Record',AVG(COLUMN2),STDEV(COLUMN2),COUNT(COLUMN2) FROM [TABLE1]
WHERE (SOME OTHER CONDITION)
Imagine there are 178 records fetched in this manner with 178 UNIONs. The WHERE clause will always change for each SELECT statement.
Now, the question is not so much about the query itself, but why the execution time is actually 15 seconds whilst the SQL STATISTICS show it to be 936ms (<1 second)
Thanks!

Execution time of Business Rule

Hi,
My rule is taking more than a day to run. How can i watch its exact execution time. I can't see it in job console as it shows that the business rule is still in processing. And i have also checked in HSP_JOB_STATUS table. It also shows that it is in processing.
Is there an other way to see the exact execution time of business rule.
Thanks and Regards.

To see the exact execution time, you can check in HBRlaunch.log file in planning.
If you want to track the execution time of different parts of your calculation script/business rule then see the essbase application log in detail in EAS.
To see log specific to your business rule, use maxl and spool log to text file, this will give you the logs related to your business rule only and the execution time.
Thanks
YSP

Same sqlID with different execution plan and Elapsed Time (s), Executions time

Hello All,
The AWR reports for two days with same sqlID with different execution plan and Elapsed Time (s), Executions time please help me to find out what is reason for this change.
Please find the below detail 17th day my process are very slow as compare to 18th
17th Oct 18th Oct
221,808,602
21
2tc2d3u52rppt
213,170,100
72,495,618
9c8wqzz7kyf37
209,239,059
71,477,888
9c8wqzz7kyf37
139,331,777
1
7b0kzmf0pfpzn
144,813,295
1
0cqc3bxxd1yqy
102,045,818
1
8vp1ap3af0ma5
128,892,787
16,673,829
84cqfur5na6fg
89,485,065
1
5kk8nd3uzkw13
127,467,250
16,642,939
1uz87xssm312g
67,520,695
8,058,820
a9n705a9gfb71
104,490,582
12,443,376
a9n705a9gfb71
62,627,205
1
ctwjy8cs6vng2
101,677,382
15,147,771
3p8q3q0scmr2k
57,965,892
268,353
akp7vwtyfmuas
98,000,414
1
0ybdwg85v9v6m
57,519,802
53
1kn9bv63xvjtc
87,293,909
1
5kk8nd3uzkw13
52,690,398
0
9btkg0axsk114
77,786,274
74
1kn9bv63xvjtc
34,767,882
1,003
bdgma0tn8ajz9
Not only queries are different but also the number of blocks read by top 10 queries are much higher on 17th than 18th.
The other big difference is the average read time on two days
Tablespace IO Stats
17th Oct
Tablespace
Reads
Av Reads/s
Av Rd(ms)
Av Blks/Rd
Writes
Av Writes/s
Buffer Waits
Av Buf Wt(ms)
INDUS_TRN_DATA01
947,766
59
4.24
4.86
185,084
11
2,887
6.42
UNDOTBS2
517,609
32
4.27
1.00
112,070
7
108
11.85
INDUS_MST_DATA01
288,994
18
8.63
8.38
52,541
3
23,490
7.45
INDUS_TRN_INDX01
223,581
14
11.50
2.03
59,882
4
533
4.26
TEMP
198,936
12
2.77
17.88
11,179
1
732
2.13
INDUS_LOG_DATA01
45,838
3
4.81
14.36
348
0
1
0.00
INDUS_TMP_DATA01
44,020
3
4.41
16.55
244
0
1,587
4.79
SYSAUX
19,373
1
19.81
1.05
14,489
1
0
0.00
INDUS_LOG_INDX01
17,559
1
4.75
1.96
2,837
0
2
0.00
SYSTEM
7,881
0
12.15
1.04
1,361
0
109
7.71
INDUS_TMP_INDX01
1,873
0
11.48
13.62
231
0
0
0.00
INDUS_MST_INDX01
256
0
13.09
1.04
194
0
2
10.00
UNDOTBS1
70
0
1.86
1.00
60
0
0
0.00
STG_DATA01
63
0
1.27
1.00
60
0
0
0.00
USERS
63
0
0.32
1.00
60
0
0
0.00
INDUS_LOB_DATA01
62
0
0.32
1.00
60
0
0
0.00
TS_AUDIT
62
0
0.48
1.00
60
0
0
0.00
18th Oct
Tablespace
Reads
Av Reads/s
Av Rd(ms)
Av Blks/Rd
Writes
Av Writes/s
Buffer Waits
Av Buf Wt(ms)
INDUS_TRN_DATA01
980,283
91
1.40
4.74

The AWR reports for two days with same sqlID with different execution plan and Elapsed Time (s), Executions time please help me to find out what is reason for this change.
Please find the below detail 17th day my process are very slow as compare to 18th
You wrote with different execution plan, I think, you saw plans. It is very difficult, you get old plan.
I think Execution plans is not changed in different days, if you not added index or ...
What say ADDM report about this script?
As you know, It is normally, different Elapsed Time for same statement in different day.
It is depend your database workload.
It think you must use SQL Access and SQl Tuning advisor for this script.
You can get solution for slow running problem.
Regards
Mahir M. Quluzade

Different execution times for back ground jobs - why?

We have few jobs scheduled and each time they run, we see a different execution times. Some times, it increases and some times it decreases steeply . What could be the reasons?
Note:
1. We have the same load of jobs on the system in all the cases.
2. We haven't changed any settings at system level.
3. Data is more or less at the same range in all the executions.
4. We mainly run these jobs
Thanks,
Kiran
Edited by: kiran dasari on Mar 29, 2010 7:12 PM

Thank you Sandra.
We have no RFC calls or other instances. Ours is a very simple system. We have two monster jobs, the first one for HR dataand second an extract program to update a Z table for BW loads.
Our basis and admin confirmed that there are no network issues
Note: We are executing these jobs over the weekend nights.
Thanks,
Kiran

Execution time of query on different indexes

Hello,
I have a query on the table, the execution time has hugh difference using different indexes on the table. The table has about 200,000 rows. Any explaination on it?
Thanks,
create table TB_test
( A1 number(9),
A2 number(9)
select count(*) from TB_test
where A1=123 and A2=456;
A. With index IDX_test on column A1:
Create index IDX_test on TB_test(A1);
Explain plan:
SELECT STATEMENT
Cost: 3,100
SORT AGGREGATE
Bytes: 38 Cardinality: 1
TABLE ACCESS BY INDEX ROWID TABLE TB_test
Cost: 3,100 Bytes: 36 Cardinality: 1
INDEX RANGE SCAN INDEX IDX_test
Cost: 40 Cardinality: 21,271
Execution time is : 5 Minutes
B. With index IDX_test on column A1 and A2:
Create index IDX_test on TB_test(A1, A2);
Explain plan:
SELECT STATMENT
Cost: 3 Bytes: 37 Cardinality: 1
SORT AGGREGATE
Bytes: 37 Cardinality: 1
INDEX RANGE SCAN INDEZ IDX_test
Cost: 3 Bytes 37 Cardinality:1
Execution time is: 1.5 Seconds

Additional you should check how many values you have in your table for the specific column values.
The following select might be helful for that.
select count(*) "total_count"
,count(case when A1=123 then 1 end) "A1_count"
,count(case when A1=123 and A2=456 then 1 end) "A1andA2_count"
from TB_test;Share your output of this.
I expect the value for A1_count still to be high. But the value for A1+A2_count relatively low.
However 5 minutes is far to long for such a small table. Even if you run it on a laptop.
There must be a reason why it is that slow.
First thing to consider would be to update your statistics for the table and the index.
Second thing could be that the table is very sparsly fillled. Meaning, if you frequently delete records from this table and load new data using APPEND hint, then the table will grow, because the free space from the deletes is never reused. Any table access in the execution plan, will be slower then needed.
A similar thing can happen, if many updates on previously empty columns are made on a table (row chaining problem).
So if you explain a little, how this table is filled and used, we could recognize a typical pattern that leads to performance issues.
Edited by: Sven W. on Nov 28, 2012 5:54 PM

Execution time of sql query differing a lot between two computer

hi
execution time of a query in my computer and more than 30 different computer is less than one second but on one of our
customers' computers, execution time is more than ten minute. databases and data and queries are same. i re-install sql but problem remains. my sql is ms sql 2008 r2.
any one has idea for this problem?

Hi mahdi,
Obviously, we can't get enough information to help you troubleshoot this issue. So, please elaborate your issue with more detail so that the community members can help you in more effecient manner.
In addition, here is a good article regarding checklist for analyzing Slow-Running queries. Please see:
http://technet.microsoft.com/en-us/library/ms177500(v=sql.105).aspx
And SQL Server Profiler and Performance Monitor are good tools to troubleshoot performance issue, please see:
Correlating SQL Server Profiler with Performance Monitor:
https://www.simple-talk.com/sql/database-administration/correlating-sql-server-profiler-with-performance-monitor/
Regards,
Elvis Long
TechNet Community Support

Virtual Machine Failes to Start: Server execution failed (0x80080005).

Hi
I have a Windows 8.1 (with updates) System which was upgraded from Windows 8.0 using a Clean Install. Recently Hyper-V has stopped running on my system.
The Event log shows an error:
'CentOS65' failed to start worker process: Server execution failed (0x80080005). (Virtual machine ID 9EF5529D-3755-40B3-AC6A-325A564D19BB)
-    System
-    Provider
           [ Name]    Microsoft-Windows-Hyper-V-VMMS
           [ Guid]    {6066F867-7CA1-4418-85FD-36E3F9C0600C}
   EventID    15500
   Version    0
   Level    2
   Task    0
   Opcode    0
   Keywords    0x8000000000000000
-    TimeCreated
           [ SystemTime]    2014-07-17T07:57:28.568965100Z
   EventRecordID    302
   Correlation
-    Execution
           [ ProcessID]    4040
           [ ThreadID]    1396
   Channel    Microsoft-Windows-Hyper-V-VMMS-Admin
   Computer    viveksasmung
-    Security
           [ UserID]    S-1-5-18
-    UserData
-    VmlEventLog
   VmName    CentOS65
   VmId    9EF5529D-3755-40B3-AC6A-325A564D19BB
   ErrorMessage    %%2148007941
   ErrorCode    0x80080005
The WMI-Activity log shows the error:
Id = {00000000-0000-0000-0000-000000000000}; ClientMachine = VIVEKSASMUNG; User = viveksasmung\Vivek; ClientProcessId = 9756; Component = Core; Operation = Start IWbemServices::ExecNotificationQuery - root\virtualization\v2 : select * from __InstanceDeletionEvent
within 2 where TargetInstance ISA 'Msvm_ComputerSystem' ; ResultCode = 0xC7F0FCD0; PossibleCause = Could not send status to client
The Hyper-V-VMMS Admin Log shows the error:
The worker process for virtual machine 'CentOS65' failed to respond within the startup timeout period and was restarted. (Virtual machine ID 9EF5529D-3755-40B3-AC6A-325A564D19BB)
'CentOS65' failed to start. (Virtual machine ID 9EF5529D-3755-40B3-AC6A-325A564D19BB)
The Hyper-V Worker Log shows the error:
The Virtual Machine Worker Process has lost its connection to the root\virtualization WMI namespace: General access denied error (0x80070005). As a result, some WMI operations may not function correctly. To correct the problem, try restarting the Windows
Management Instrumentation service.
I set the Hyper-V Tracing to ON using vmconnect.config
file and the error log is as follows:
Tracing Hyper-V Client version: 6.3.0.0. Rough build date (virtman file written): 05/18/2014 23:25:02
2014-07-17 01:55:28.990 [08] USER_ACTION_INITIATED VMBrowser ServerNode:ConnectToServer() Connecting to server localhost...
2014-07-17 01:55:29.008 [08] USER_ACTION_COMPLETED VMBrowser ServerNode:ConnectToServer() Successfully connected to server.
2014-07-17 01:55:29.463 [07] WARNING VirtMan WmiAssociation:GetRelatedObjects() The WMI object 'Msvm_RdvComponentSettingData' + could not be mapped to VirtMan type so ignore it.
2014-07-17 01:55:33.001 [03] USER_ACTION_INITIATED VMBrowser ServerNodeViewControl:OnStartVm() Starting VM(s)...
2014-07-17 01:55:33.023 [09] USER_ACTION_INITIATED VMBrowser VMActionBatchPerformer:Perform() Changing virtual machine '9EF5529D-3755-40B3-AC6A-325A564D19BB' ('CentOS65') state from 'PowerOff' to 'Running'
2014-07-17 01:59:33.927 [12] ERROR VirtMan ThrowHelper:ThrowVirtualizationOperationFailedException() Operation 'SetState' failed with message ''CentOS65' failed to start.'.
    Error code '32768'.
    Detailed message ''CentOS65' failed to start. (Virtual machine ID 9EF5529D-3755-40B3-AC6A-325A564D19BB)
'CentOS65' failed to start worker process: Server execution failed (0x80080005). (Virtual machine ID 9EF5529D-3755-40B3-AC6A-325A564D19BB)'.
2014-07-17 01:59:33.930 [12] ERROR VMBrowser VMActionBatchPerformer:OnTaskCompleted() Tracked task operation failed!
    'CentOS65' failed to start.
       at Microsoft.Virtualization.Client.Management.ThrowHelper.ThrowVirtualizationOperationFailedException(String errorMsg, String errorDescriptionMsg, VirtualizationOperation operation, Int64 errorCode, Boolean operationCanceled,
ErrorCodeMapper mapper, Exception innerException)
   at Microsoft.Virtualization.Client.Management.View.EndMethodReturnInternal(IVMTask task, VirtualizationOperation operation, Boolean affectedElementExpected)
   at Microsoft.Virtualization.Client.Management.VMComputerSystemBaseView.EndSetState(IVMTask setStateTask)
   at Microsoft.Virtualization.Client.VMBrowser.ChangeVMStatePerformer.EndTrackedTask(IVMTask task)
   at Microsoft.Virtualization.Client.VMBrowser.VMActionBatchPerformer.OnTaskCompleted(Object sender, EventArgs e)
2014-07-17 01:59:46.103 [03] USER_ACTION_INITIATED VMBrowser ServerNode:DisconnectFromServer() Disconnecting from server localhost...
2014-07-17 01:59:46.104 [03] USER_ACTION_COMPLETED VMBrowser ServerNode:DisconnectFromServer() Server had been disconnected successfully.
Upon using BCDEdit, output is below
Windows Boot Manager
identifier              {bootmgr}
device                  partition=\Device\HarddiskVolume1
path                    \bootmgr
description             Windows Boot Manager
locale                  en-GB
default                 {current}
resumeobject            {37225af7-cc62-11e3-8277-806e6f6e6963}
displayorder            {current}
                        {3ce506e4-cc90-11e3-8b9f-8a809d5a6432}
timeout                 30
Windows Boot Loader
identifier              {current}
device                  partition=C:
path                    \Windows\system32\winload.exe
description             Windows 8.1 Pro with Media Center
locale                  en-GB
recoverysequence        {3ce506df-cc90-11e3-8b9f-8a809d5a6432}
recoveryenabled         Yes
osdevice                partition=C:
systemroot              \Windows
resumeobject            {37225af7-cc62-11e3-8277-806e6f6e6963}
bootmenupolicy          Legacy
hypervisorlaunchtype    Auto
quietboot               No
Real-mode Boot Sector
identifier              {3ce506e4-cc90-11e3-8b9f-8a809d5a6432}
device                  partition=C:
path                    \Hd0Par3.pbr
description             Ubuntu LTS 14.04
I have set permissions to the VHD folder using the command below
icacls "c:\CentOS65\CentOS65" /grant "CREATOR OWNER":(OI)(CI)(IO)F
icacls "c:\CentOS65\CentOS65" /grant "NT AUTHORITY\SYSTEM":(OI)(CI)F
icacls "c:\CentOS65\CentOS65" /grant "NT VIRTUAL MACHINE\Virtual Machines":(RC,S,GR,RD,WD,AD,REA,RA)
icacls "c:\CentOS65\CentOS65" /grant "NT VIRTUAL MACHINE\Virtual Machines":(CI)(IO)(GR,WD,AD)
icacls "c:\CentOS65\CentOS65\Virtual Hard Disks" /grant "NT VIRTUAL MACHINE\Virtual Machines":(RC,S,GR,RD,WD,AD,REA,RA)
icacls "c:\CentOS65\CentOS65\Virtual Hard Disks" /grant "NT VIRTUAL MACHINE\Virtual Machines":(CI)(IO)(GR,WD,AD)
icacls "C:\CentOS65\CentOS65\Virtual Hard Disks\CentOSHome.vhdx" /grant "NT VIRTUAL MACHINE\9EF5529D-3755-40B3-AC6A-325A564D19BB":(RC,S,GR,GW,RD,WD,AD,REA,WEA,RA,WA)
icacls "C:\CentOS65\CentOS65\Virtual Hard Disks\CentOS65.vhdx" /grant "NT VIRTUAL MACHINE\9EF5529D-3755-40B3-AC6A-325A564D19BB":(RC,S,GR,GW,RD,WD,AD,REA,WEA,RA,WA)
icacls "C:\CentOS65\CentOS65\Virtual Hard Disks\CentOSHome_9E7FEF2E-85E0-4278-AABD-01D5E45EE643.avhdx" /grant "NT VIRTUAL MACHINE\9EF5529D-3755-40B3-AC6A-325A564D19BB":(RC,S,GR,GW,RD,WD,AD,REA,WEA,RA,WA)
icacls "C:\CentOS65\CentOS65\Virtual Hard Disks\CentOS65_28FF0E50-0FBA-4754-A4CC-B3DAEC7E3DAA.avhdx" /grant "NT VIRTUAL MACHINE\9EF5529D-3755-40B3-AC6A-325A564D19BB":(RC,S,GR,GW,RD,WD,AD,REA,WEA,RA,WA)
icacls "C:\CentOS65\CentOS65\Virtual Hard Disks\CentOSHome.vhdx" /grant "NT VIRTUAL MACHINE\9EF5529D-3755-40B3-AC6A-325A564D19BB":(RC,S,GR,GW,RD,WD,AD,REA,WEA,RA,WA)
icacls "C:\CentOS65\CentOS65\Virtual Hard Disks\CentOS65.vhdx" /grant "NT VIRTUAL MACHINE\9EF5529D-3755-40B3-AC6A-325A564D19BB":(RC,S,GR,GW,RD,WD,AD,REA,WEA,RA,WA)
icacls "C:\CentOS65\CentOS65\Virtual Hard Disks\CentOS65.vhdx" /grant "NT VIRTUAL MACHINE\9EF5529D-3755-40B3-AC6A-325A564D19BB":(F)
icacls "C:\CentOS65\CentOS65\Virtual Hard Disks\CentOSHome.vhdx" /grant "NT VIRTUAL MACHINE\9EF5529D-3755-40B3-AC6A-325A564D19BB":(F)
icacls "C:\CentOS65\CentOS65\Virtual Machines\9EF5529D-3755-40B3-AC6A-325A564D19BB.xml" /grant "NT VIRTUAL MACHINE\9EF5529D-3755-40B3-AC6A-325A564D19BB":(F)
I am unable to create new VMs as well.
I have already run
sfc/ scannow
DISM
Already Tried disabling the antivirus
Upon using wbemtest and connecting to root\virtualization, I am able to click Enum Classes > Recursive
Kindly suggest how to get HyperV working please. Any help (short of reinstalling /resetting windows) would be much appreciated.
Warm Regards,
Dr Vivek Gupta

Hi,
The key point would be this:
The Virtual Machine Worker Process has lost its connection to the root\virtualization WMI namespace: General access denied error (0x80070005).
Please open MMC, add Component Services snap-in:
Component Services -> Computers -> My Computer -> DCOM Config -> Windows Management Instrumentation -> Right Click, Properties -> Security “Launch and Activation Permission” -> Edit -> gave Authenticated Users
Full Control
Check the result.
Alex Zhao
TechNet Community Support

We are a creative design studio, we need to use apple mac pro server , so we can make more than a different user to use at the same time doing different activities, on different screens, is it possible?what is the max. no. of users that can work efficient

we are a creative design studio, we need to use apple mac pro server , so we can make more than a different user to use at the same time doing different activities, on different screens, is it possible?what is the max. no. of users that can work efficient.
Appreciate your support and if possible , how to do this?

If you want to work with Mac OS X, you need one computer per simultaneous user.
What you are describing, " Multiple simultaneous logins to a single computer" is not avialable on a regular Mac of any description, unless you decide to use Unix tools instead of Mac OS X.
Server will happily store files for many, many users and provide them to multiple (up to hundreds) of computers at "near hard Drive" speeds over Gigabit Ethernet. It can make the File Sharing part easy.

How do I set up a virtual server with a time capsule?

I am trying to set up a wireless camera in my house to be viewed from away from the house.
I cannot seem to figure out port forwarding/virtual serving on the settings of my time capsule. I had no issues doing it with my old router. Does time capsule have that abilty?
I have Macs and PCs,

I figured it out.

Last one month jobs execution time in sql server 2008 r2

Dear Friends,
We configured replication between three servers two are publishers and one subscriber for two publisher.
my question is daily basis one job running on subscriber end it truncate and insert the data every night .
unfortunately today job was failed I observed in jobs view history. but client requirement manually run the job and data dump into the table. but I want know its previous execution time as per that I will run the job in production hours but in jobs view
history showing only today's fail job history. how to find the last execution time .
note: yesterday job was successfully completed.
Message
Executed as user: NT AUTHORITY\SYSTEM. Cannot initialize the data source object of OLE DB provider "SQLNCLI10" for linked server "server name". [SQLSTATE 42000] (Error 7303) OLE DB provider "SQLNCLI10" for linked
server "server name" returned message "Unable to complete login process due to delay in opening server connection". [SQLSTATE 01000] (Error 7412). The step failed.
mastanvali shaik

But what about to that particular job ? what is the name of the job ? Please assign that job name in the below script and check .. Its sure that history is not exist for that particular job anyway for your confirmation please use the below scripts and try...
make sure to add the name .. when was the last backup taken for your system databases ?
WHERE JOB.name = 'Your JobName' -- Add your job name..
SELECT [JobName] = JOB.name,
[Step] = HIST.step_id,
[StepName] = HIST.step_name,
[Message] = HIST.message,
[Status] = CASE WHEN HIST.run_status = 0 THEN 'Failed'
WHEN HIST.run_status = 1 THEN 'Succeeded'
WHEN HIST.run_status = 2 THEN 'Retry'
WHEN HIST.run_status = 3 THEN 'Canceled'
END,
[RunDate] = HIST.run_date,
[RunTime] = HIST.run_time,
[Duration] = HIST.run_duration
FROM sysjobs JOB
INNER JOIN sysjobhistory HIST ON HIST.job_id = JOB.job_id
WHERE JOB.name = 'Your JobName'
ORDER BY HIST.run_date, HIST.run_time
Raju Rasagounder Sr MSSQL DBA

Different execution time

Hello, when i run the bellow code more than one time i am getting different execution time("Total time taken"),
Ex. when i run first time it prints Total time taken 47
second time it prints Total time taken 16
thrid time Total time taken 78 ,why its vary,
Please solve my question
long l = System.currentTimeMillis();
System.out.println(l);
     for(int i=0; i <88; i++){
          System.out.print("Hello ");
     System.out.println("\n"+" Total time taken "+(System.currentTimeMillis() - l));

Its worth noting that the application is IO bound (due to printing to a device/console)
So you are really testing the performance of your IDE/console.
public static void main(String... args) throws IOException {
    int count = 100 * 1000;
    long start = 0;
    for (int i = -count / 10; i < count; i++) {
        if (i == 0)
            start = System.nanoTime();
        System.out.print("Hello ");
    long time = System.nanoTime() - start;
    System.out.printf("%nTotal time taken %,5d micro-seconds per call%n", time / count);
}

Virtual Server: Execution time very different.

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