Initial commit (3fa614c4) · Commits · examples / Oracle 8i Internal Services

9781565925984

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README.md

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		## Example files for the title:

		# Oracle 8i Internal Services, by Steve Adams

		[![Oracle 8i Internal Services, by Steve Adams](http://akamaicovers.oreilly.com/images/9781565925984/cat.gif)](https://www.safaribooksonline.com/library/view/title/156592598X//)

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lst/latch_gets.lst

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		SQL> @latch_gets

		LATCH TYPE SIMPLE GETS SPIN GETS SLEEP GETS
		------------------------------ ------------------ -------------- --------------
		NLS data objects 1 100.00% 0 0.00% 0 0.00%
		archive control 228 100.00% 0 0.00% 0 0.00%
		cache buffer handles 67399 100.00% 0 0.00% 0 0.00%
		cache buffers chains 2948282897 100.00% 11811 0.00% 35999 0.00%
		cache buffers lru chain 56863812 99.60% 44364 0.08% 182480 0.32%
		dml lock allocation 2047579 99.99% 36 0.00% 199 0.01%
		enqueue hash chains 14960087 99.95% 1139 0.01% 6603 0.04%
		enqueues 24759299 100.00% 165 0.00% 861 0.00%
		global transaction 32782248 100.00% 0 0.00% 0 0.00%
		global tx free list 87604 100.00% 0 0.00% 0 0.00%
		global tx hash mapping 4728751 100.00% 36 0.00% 184 0.00%
		ktm global data 691 100.00% 0 0.00% 0 0.00%
		latch wait list 89114 99.86% 27 0.03% 95 0.11%
		library cache 79753368 99.92% 18995 0.02% 43535 0.05%
		library cache load lock 14617 99.99% 0 0.00% 1 0.01%
		list of block allocation 3374382 99.99% 47 0.00% 353 0.01%
		loader state object freelist 466 100.00% 0 0.00% 0 0.00%
		messages 58834525 99.98% 3968 0.01% 8315 0.01%
		modify parameter values 8099 99.96% 1 0.01% 2 0.02%
		multiblock read objects 977502 100.00% 2 0.00% 6 0.00%
		process allocation 7266 100.00% 0 0.00% 0 0.00%
		redo allocation 145994728 99.93% 29218 0.02% 66781 0.05%
		redo copy 832 4.23% 606 3.08% 18245 92.69%
		row cache objects 6847179 100.00% 89 0.00% 76 0.00%
		sequence cache 115269 100.00% 0 0.00% 0 0.00%
		session allocation 1425524 99.99% 13 0.00% 78 0.01%
		session idle bit 27555463 99.99% 256 0.00% 1198 0.00%
		session switching 3329 100.00% 0 0.00% 0 0.00%
		shared pool 1748934 99.97% 272 0.02% 295 0.02%
		sort extent pool 691 100.00% 0 0.00% 0 0.00%
		system commit number 132026967 99.99% 2312 0.00% 5548 0.00%
		transaction allocation 3650143 99.98% 80 0.00% 535 0.01%
		undo global data 17310031 99.99% 252 0.00% 1327 0.01%
		user lock 19487 100.00% 0 0.00% 0 0.00%
		SQL>
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lst/latch_sleeps.lst

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		SQL> @latch_sleeps

		LATCH TYPE IMPACT SLEEP RATE WAITS HOLDING LEVEL
		------------------------------ ----------- ---------- ------------- -------
		library cache 11224 0.03% 256 5
		cache buffers chains 1295 0.00% 0 1
		redo allocation 713 0.01% 9613 7
		system commit number 373 0.00% 66 8
		enqueue hash chains 221 0.00% 3 4
		redo copy 210 22.30% 0 6
		shared pool 166 0.01% 1434 7
		cache buffers lru chain 146 0.01% 336 3
		messages 135 0.01% 0 8
		session allocation 113 0.02% 0 5
		row cache objects 86 0.00% 0 4
		enqueues 75 0.00% 624 5
		latch wait list 48 0.08% 1 9
		session idle bit 47 0.00% 0 1
		undo global data 14 0.00% 0 5
		multiblock read objects 13 0.00% 8 3
		sequence cache 11 0.00% 0 8
		dml lock allocation 10 0.00% 0 3
		transaction allocation 10 0.00% 0 8
		list of block allocation 4 0.00% 0 3
		modify parameter values 2 0.03% 0 0
		process allocation 1 0.02% 0 0