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MediaPortal 2
Plugin Development
SQLiteDatabase Plugin for MP2
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<blockquote data-quote="MJGraf" data-source="post: 1030815" data-attributes="member: 17886"><p>And one more update:</p><p>MMAP doesn't help at all. I tried with 128MB mmap_size and 512MB mmap_size and the ReadTime for ReadTests 3 and 4 were about the same as without MMAP (< +/- 5%). I also tried a mmap_size of 2GB to get my whole database file mapped, but this was a nighmare. ReadTest 2 was 20 seconds instead of 200ms - probably there was no more RAM for anything else <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin :D" loading="lazy" data-shortname=":D" /></p><p>So for now I let memory mapped i/o switched off completely</p></blockquote><p></p>
[QUOTE="MJGraf, post: 1030815, member: 17886"] And one more update: MMAP doesn't help at all. I tried with 128MB mmap_size and 512MB mmap_size and the ReadTime for ReadTests 3 and 4 were about the same as without MMAP (< +/- 5%). I also tried a mmap_size of 2GB to get my whole database file mapped, but this was a nighmare. ReadTest 2 was 20 seconds instead of 200ms - probably there was no more RAM for anything else :D So for now I let memory mapped i/o switched off completely [/QUOTE]
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