Large OLTP data set to get through the cache in our new ZS3-2 storage.

We recently purchased a ZS3-2 and are currently attempting to do performance testing. We are using various tools to simulate load within our Oracle VM 3.3.1 cluster of qty5 Dell m620 servers-- swingbench, vdbench, and dd. The OVM repositories are connecting via NFS. The Swingbench load testing servers have a base OS disk mounted from the repos and NFS mounts via NFS v4 from within the VM (we would also like to test dNFS later in our testing).
The problem I'm trying to get around is that the 256G of DRAM (and a portion of that for ARC) is large enough where my reads are not touching the 7200 RPM disks. I'd like to create a large enough data set so the amount of random reads cannot possible be stored within the ARC cache (NOTE: we have no L2ARC at the moment).
I've run something similar to this in the past, but have adjusted the "sizes=" to be larger than 50m. My thought here is that, if the ARC is up towards around 200 or so MB's, if I create the following on four separate VM's and run vdbench at just about the same time, it will be attempting to read more data than can possibly fit in the cache.
* 100% random, 70% read file I/O test.
hd=default
fsd=default,files=16,depth=2,width=3,sizes=(500m,30,1g,70)
fsd=fsd1,anchor=/vm1_nfs
fwd=fwd1,fsd=fsd*,fileio=random,xfersizes=4k,rdpct=70,threads=8
fwd=fwd2,fsd=fsd*,fileio=random,xfersizes=8k,rdpct=70,threads=8
fwd=fwd3,fsd=fsd*,fileio=random,xfersizes=16k,rdpct=70,threads=8
fwd=fwd4,fsd=fsd*,fileio=random,xfersizes=32k,rdpct=70,threads=8
fwd=fwd5,fsd=fsd*,fileio=random,xfersizes=64k,rdpct=70,threads=8
fwd=fwd6,fsd=fsd*,fileio=random,xfersizes=128k,rdpct=70,threads=8
fwd=fwd7,fsd=fsd*,fileio=random,xfersizes=256k,rdpct=70,threads=8
rd=rd1,fwd=fwd1,elapsed=900,interval=30,fwdrate=max,format=yes,pause=30,openflags=fsync
rd=rd2,fwd=fwd2,elapsed=900,interval=30,fwdrate=max,format=yes,pause=30,openflags=fsync
rd=rd3,fwd=fwd3,elapsed=900,interval=30,fwdrate=max,format=yes,pause=30,openflags=fsync
rd=rd4,fwd=fwd4,elapsed=900,interval=30,fwdrate=max,format=yes,pause=30,openflags=fsync
rd=rd5,fwd=fwd5,elapsed=900,interval=30,fwdrate=max,format=yes,pause=30,openflags=fsync
rd=rd6,fwd=fwd6,elapsed=900,interval=30,fwdrate=max,format=yes,pause=30,openflags=fsync
rd=rd7,fwd=fwd7,elapsed=900,interval=30,fwdrate=max,format=yes,pause=30,openflags=fsync
However, the problem I keep running into is that vdbench's java processes will throw exceptions
... <cut most of these stats. But suffice it to say that there were 4k, 8k, and 16k runs that happened before this...>
14:11:43.125 29 4915.3 1.58 10.4 10.0 69.9 3435.9 2.24 1479.4 0.07 53.69 23.12 76.80 16384 0.0 0.00 0.0 0.00 0.0 0.00 0.1 7.36 0.1 627.2 0.0 0.00 0.0 0.00 0.0 0.00
14:12:13.071 30 4117.8 1.88 10.0 9.66 69.8 2875.1 2.65 1242.7 0.11 44.92 19.42 64.34 16384 0.0 0.00 0.0 0.00 0.0 0.00 0.1 12.96 0.1 989.1 0.0 0.00 0.0 0.00 0.0 0.00
14:12:13.075 avg_2-30 5197.6 1.52 9.3 9.03 70.0 3637.8 2.14 1559.8 0.07 56.84 24.37 81.21 16383 0.0 0.00 0.0 0.00 0.0 0.00 0.1 6.76 0.1 731.4 0.0 0.00 0.0 0.00 0.0 0.00
14:12:15.388
14:12:15.388 Miscellaneous statistics:
14:12:15.388 (These statistics do not include activity between the last reported interval and shutdown.)
14:12:15.388 WRITE_OPENS Files opened for write activity: 89 0/sec
14:12:15.388 FILE_CLOSES Close requests: 81 0/sec
14:12:15.388
14:12:16.116 Vdbench execution completed successfully. Output directory: /oracle/zfs_tests/vdbench/output
java.lang.RuntimeException: Requested parameter file does not exist: param_file
at Vdb.common.failure(common.java:306)
at Vdb.Vdb_scan.parm_error(Vdb_scan.java:50)
at Vdb.Vdb_scan.Vdb_scan_read(Vdb_scan.java:67)
at Vdb.Vdbmain.main(Vdbmain.java:550)
So I know from reading other posts, that vdbench will do what you tell it (Henk brought that up). But based on this, I can't tell what I should do differently to the vdbench file to get around this error. Does anyone have advice for me?
Thanks,
Joe

ah... it's almost always the second set of eyes. Yes, it is run from a script. And I just looked and realized that the list last line didn't have the \# in it. Here's the line:
"Proceed to the "Test Setup" section, but do something like `while true; do ./vdbench -f param_file; done` so the tests just keep repeating."
I just added the hash to comment that out and am rerunning my script. My guess is that it'll complete Thanks Henk.

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I want to build an array using the data that I get through the serial port

I am reading data through the serial port, but I want to buffer these data. I have seen a function, but i think that i can use this if I am reading data from I/O intrument, so I don´t how can I fill an array, with the data that I am reading!!!
Thank you!!!

I'll hazard a guess that you are reading data with VISA as a string. Then you want to convert that (probably with Scan From String) into a number. Then, you want to collect those numbers into an array.
We don't really have enough information to tell you the best way to do this. Here are some ideas.
If you are reading all the numbers from the instrument at once (e.g., a waveform from a scope), you might consider using "Spreadsheet string to array". Most scopes return the data as ASCII with commas between the values, so you'd wire a "," to the "delimiter" input of the "Spreadsheet string to array" function.
If, however, the instrument is returning a single point at a time, there are more questions. Do you want to do this continuously, or do you want t
o collect only a certain number of data points, and then process them as a block?
If the latter, then you'd just acquire each data point, convert it to a number, and then use output indexing on the for loop to create your array.
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If you let us know what you want to do, we can probably provide more precise help.
Brian

Just bought a new mac mini, wireless keyboard, and track pad. My track pad will not synch. All advise I have been given is to change items in the setting menu, but I cant because I still have to get through the setup!!

Just bought a new mac mini, wireless keyboard, and track pad. My track pad will not synch. All advise I have been given is to change items in the setting menu, but I cant because I still have to get through the setup!!

The power button for the Trackpad is on the right hand end of the battery case. Press that button to initiate the pairing process. On the top of the Trackpad just above the power button is a tiny green light (you probably cannot see it unless it is lighted). That light will indicate ehther or not the Trackpad is discoverable. If the Trackpad has discoverable the green light will blink on and off. If it does not pair within 3 minutes you will have to press the power button again to re-initiate the pairing process. Once your Trackpad has paired, you can just leave it on and it will pair automatically when you reboot your Mac.
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Please help: data doesn't get through when using NIO's UDP

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//***client's sending code***
public void sendEventToServer(int[] values) {
    prepWriteBuffer(values);
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      dChannel.write(writeBuffer);
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      System.out.println("Error when send event to server");
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writeBuffer.flip();
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public void sReceive(long startTime){
    do {
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      InetSocketAddress sourceAddr = null;
      // read from the channel into our buffer
      try {
             sourceAddr = (InetSocketAddress) dChannel.receive(readBuffer);
      catch (Exception ioe) {
             System.out.println(ioe);
      // check for end-of-stream
      //I tried with "if (readBuffer.hasRemaining())", getting the same "data disappearing" problem
      if (sourceAddr == null) {
             //*********Problem: no matter how often the client is sending, this "if" clause is always entered
             //that is, data disappeared
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             break;
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             //******Problem: client keeps sending, but this "else" is never entered.
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             readBuffer.flip();
             broadcastEvent(readBuffer, sourceAddr);
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Here's how the buffer filling stuff works, Ron Hitchen's JAva NIO O'Reilly press, has lots of good diagrams of this.
buf = ByteBuffer.allocate(10) // creates new buffer
0----1----2----3----4----5----6----7----8----9----10
|    |    |    |    |    |    |    |    |    |    |
----------------------------------------+
^                                                 ^
|                                                 |
position=0                                       limit=capacity
buf.putInt(5); // relative put, updates position
0----1----2----3----4----5----6----7----8----9----10
| 00 | 00 | 00 | 05 |    |    |    |    |    |    |
----------------------------------------+
                      ^                             ^
                      |                             |
                   position=4                    limit=capacity
                   updated
buf.putInt(4,12); // absolute put doesn't update position
0----1----2----3----4----5----6----7----8----9----10
| 00 | 00 | 00 | 05 | 00 | 00 | 00 | 0c |    |    |
----------------------------------------+
                      ^                             ^
                      |                             |
                   position=4                     limit=capacity
buf.position(8); // so we set the position ourselves
0----1----2----3----4----5----6----7----8----9----10
| 00 | 00 | 00 | 05 | 00 | 00 | 00 | 0c |    |    |
----------------------------------------+
                                          ^         ^
                                          |         |
                                     position=8   limit=capacity
buf.flip(); // flip prepares for write
0----1----2----3----4----5----6----7----8----9----10
| 00 | 00 | 00 | 05 | 00 | 00 | 00 | 0c |    |    |
----------------------------------------+
^                                       ^         ^
|                                       |         |
position=0                             limit=8   capacity
channel.write(buf); // write it out, assume all gets written
0----1----2----3----4----5----6----7----8----9----10
| 00 | 00 | 00 | 05 | 00 | 00 | 00 | 0c |    |    |
----------------------------------------+
                                          ^         ^
                                          |         |
                              position=limit=8   capacity
if it didn't all go out, the position would indicate the
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Reg : data is not getting in the output

hi team,
             data is not getting in the output, but it is getting in the debug mode
REPORT ZSAPP10 .
*tables : pernr.
TABLES : PA0001.
type-pools : slis.
types : begin of itab,
        pernr type pernr,
        orgeh type orgeh,
        abkrs type abkrs,
        end of itab,
        begin of itab2,
        pernr type pernr,
        vorna type pad_vorna,
        nachn type pad_nachn,
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parameter : p_pernr like pa0001-pernr.
*DATA: g_cprog tYPE SY-CPROG.
data : i_itab1 type table of itab initial size 0,
       i_itab2 type table of itab2 initial size 0.
data : w_itab type itab,
       w_itab2 type itab2.
data : t_fieldcat type slis_t_fieldcat_alv,
        w_fieldcat type slis_fieldcat_alv.
data : t_event type slis_t_event,
        w_event type slis_alv_event.
data : t_listheader type slis_t_listheader,
       w_listheader type slis_listheader.
*get pernr.
w_event-form = 'TOP_OF_PAGE'.
w_event-form = 'sub1'.
append w_event to t_event.
w_listheader-typ = 'H'.
w_listheader-info = 'this is new top of page'.
append w_listheader to t_listheader.
select pernr
       orgeh
       abkrs from pa0001 into table i_itab1 where pernr = p_pernr.
w_fieldcat-col_pos = 1.
w_fieldcat-seltext_m = 'personnal no'.
w_fieldcat-fieldname = 'pernr'.
w_fieldcat-tabname = 'i_itab1'.
w_fieldcat-outputlen = '20'.
append w_fieldcat to t_fieldcat.
w_fieldcat-col_pos = 2.
w_fieldcat-seltext_m = 'org. unit'.
w_fieldcat-tabname = 'i_itab1'.
w_fieldcat-fieldname = 'orgeh'.
w_fieldcat-outputlen = '20'.
append w_fieldcat to t_fieldcat.
w_fieldcat-col_pos = 3.
w_fieldcat-seltext_m = 'payroll area'.
w_fieldcat-tabname = 'i_itab1'.
w_fieldcat-fieldname = 'abkrs'.
w_fieldcat-outputlen = '20'.
append w_fieldcat to t_fieldcat.
*g_cprog = SY-CPROG.
CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY'
EXPORTING
           I_INTERFACE_CHECK                 = ' '
           I_BYPASSING_BUFFER                =
           I_BUFFER_ACTIVE                   = ' '
             I_CALLBACK_PROGRAM                = SY-CPROG
           I_CALLBACK_PF_STATUS_SET          = ' '
           I_CALLBACK_USER_COMMAND           = ' '
           I_CALLBACK_TOP_OF_PAGE            = ' '
           I_CALLBACK_HTML_TOP_OF_PAGE       = ' '
           I_CALLBACK_HTML_END_OF_LIST       = ' '
           I_STRUCTURE_NAME                  =
           I_BACKGROUND_ID                   = ' '
           I_GRID_TITLE                      =
           I_GRID_SETTINGS                   =
           IS_LAYOUT                         =
             IT_FIELDCAT                       = T_FIELDCAT
           IT_EXCLUDING                      =
           IT_SPECIAL_GROUPS                 =
           IT_SORT                           =
           IT_FILTER                         =
           IS_SEL_HIDE                       =
           I_DEFAULT                         = 'X'
           I_SAVE                            = ' '
           IS_VARIANT                        =
             IT_EVENTS                         = T_EVENT
           IT_EVENT_EXIT                     =
           IS_PRINT                          =
           IS_REPREP_ID                      =
           I_SCREEN_START_COLUMN             = 0
           I_SCREEN_START_LINE               = 0
           I_SCREEN_END_COLUMN               = 0
           I_SCREEN_END_LINE                 = 0
           IT_ALV_GRAPHICS                   =
           IT_ADD_FIELDCAT                   =
           IT_HYPERLINK                      =
           I_HTML_HEIGHT_TOP                 =
           I_HTML_HEIGHT_END                 =
           IT_EXCEPT_QINFO                   =
         IMPORTING
           E_EXIT_CAUSED_BY_CALLER           =
           ES_EXIT_CAUSED_BY_USER            =
             TABLES
             T_OUTTAB                          = I_ITAB1[]
          EXCEPTIONS
            PROGRAM_ERROR                     = 1
            OTHERS                            = 2
IF SY-SUBRC <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
          WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
      FORM sub1                                                     *
FORM sub1.
CALL FUNCTION 'REUSE_ALV_COMMENTARY_WRITE'
    EXPORTING
      IT_LIST_COMMENTARY       = t_listheader
I_LOGO                   =
I_END_OF_LIST_GRID       =
ENDFORM.                                                    " sub1

write this way...
    CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY'
        EXPORTING
        i_callback_program                = w_repid
        is_layout                = wa_layout
        i_callback_user_command = 'USER_COMMAND_ACCT'
        i_grid_title             = 'Document Status Report'
         it_fieldcat                       = it_fcat[]
     IT_SORT                        = IT_SORT[]
         it_events                = it_events
         TABLES
           t_outtab                        = it_final_data[]
      EXCEPTIONS
        program_error                     = 1
        OTHERS                            = 2.

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Trouble installing iTunes or QuickTime for Windows
http://support.apple.com/kb/ht1926
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http://support.apple.com/kb/HT1420
shendricks11 wrote:
... Once we hit 5 are we out of luck or do they revolve? Like putting on number 6 will delete number 1?
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