ASP.NET Web PDF Document Viewer/Editor Control Library

When you run the window script, you will see a window much like the one in Figure 22-1. To use the program, simply type in a node name or IP address, and the script will do the rest to bring up an xterm with a remote connection to the desired machine.

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Listing the last 3 days of Completed Snapshots Instance DB Name Snap Id Snap Started Snap Level ------------ ------------ --------- ----------------------- ----orcl ORCL 3254 30 Mar 2005 00:00 1 3307 01 Apr 2005 05:00 1 3308 01 Apr 2005 06:00 1 3309 01 Apr 2005 07:00 1 3310 01 Apr 2005 08:01 1 3311 01 Apr 2005 09:00 1 3312 01 Apr 2005 10:00 1 3313 01 Apr 2005 11:00 1 Specify the Begin and End Snapshot Ids Specify the Begin and End Snapshot Ids ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Enter value for begin_snap: 3309 Begin Snapshot Id specified: 3309 Enter value for end_snap: 3313 End Snapshot Id specified: 3313 Specify the Report Name.

Finally, select a name for the report, as shown in Listing 18-4. You can either choose the default name that s offered or specify your own name for the AWR report. Listing 18-4. Specifying the Report Name for an AWR Report The default report file name is awrrpt_1_3309_3313.txt. To use this name, press <return> to continue, otherwise enter an alternative. Enter value for report_name: Using the report name awrrpt_1_3309_3313.txt WORKLOAD REPOSITORY report for DB Name DB Id Instance Inst Num Release Cluster Host ------------ ----------- ------------ ------------ ----------- ------- -----------ORCL 877170026 orcl 1 10.1.0.2.0 NO prod2 Snap --------Begin Snap: 3309 End Snap: 3313 Elapsed: DB Time: Snap Id Time Sessions Curs/Sess ------------------- -------- ------------01-Apr-05 07:00:28 480 7,795.3 01-Apr-05 11:00:58 1,179 3,239.7 240.49 (mins) 7,999.88 (mins)

The first meaningful part of the AWR report shows the size of the buffer cache and the shared pool, as shown here: Cache Sizes (end) ~~~~~~~~~~~~~~~~~ Buffer Cache: Shared Pool Size:

The Load Profile segment of the AWR report, shown in Listing 18-5, indicates the amount of logical and physical reads in the database between the two snapshots you chose, as well as the number of parses, executions, and transactions. The load analysis is shown both on a per-second and per-transaction basis. This section should give you a quick idea about the load being carried by the instance, and it will be more useful if you have some baseline figures from a representative period to compare it with. Listing 18-5. The Load Profile Section of an AWR Report Load Profile Per Second Per Transaction -----------------------------------------------------Redo size: 209,042.04 19,549.50 Logical reads: 181,753.19 16,997.46 Block changes: 1,470.90 137.56 Physical reads: 6,473.32 605.38 Physical writes: 46.45 4.34 User calls: 2,189.05 204.72 Parses: 225.36 21.08 Hard parses: 1.93 0.18 Sorts: 2,462.09 230.25 Logons: 0.91 0.09 Executes: 2,224.24 208.01 Transactions: 10.69 The Instance Efficiency segment, shown next, shows the buffer cache, library cache hit ratios, and the percentage of sorting in memory. If this value is low, you should investigate why disk sorting is high.

To specify the connection type to the remote machine and override the preconfigured value, enter the node name or IP address followed by a space and one of the following switches: s, which specifies an ssh connection r, which specifies an rlogin connection t, which specifies a telnet connection If you don t add a switch indicating a connection type, the script will default to the any connection option, which attempts to establish a connection to the remote machine by trying ssh first, then rlogin, and finally telnet.

Instance Efficiency Percentages (Target 100%) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Buffer Nowait %: 99.91 Redo NoWait %: Buffer Hit %: 96.44 In-memory Sort %: Library Hit %: 99.81 Soft Parse %: Execute to Parse %: 89.87 Latch Hit %: Parse CPU to Parse Elapsd %: 29.23 % Non-Parse CPU:

The Global Assembly Cache (GAC)

100.00 100.00 99.14 99.55 99.04