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reduce default datapage_size to 1 (4096) to avoid useless seeks for small values

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git-svn-id: svn+ssh://svn.corp.yahoo.com/yahoo/yrl/labs/pnuts/code/logstore@1234 8dad8b1f-cf64-0410-95b6-bcf113ffbcfe
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sears 2010-10-05 16:23:31 +00:00
parent f9a1f411e1
commit b9dd11a7e4
1 changed files with 2 additions and 1 deletions
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3
logstore.h
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@ -33,7 +33,8 @@ public:
// //
// 6GB ~= 100B * 500 GB / (datapage_size * 4KB) // 6GB ~= 100B * 500 GB / (datapage_size * 4KB)
// (100B * 500GB) / (6GB * 4KB) = 2.035 // (100B * 500GB) / (6GB * 4KB) = 2.035
logtable(pageid_t internal_region_size = 1000, pageid_t datapage_region_size = 10000, pageid_t datapage_size = 2); // RCS: Set this to 1 so that we do (on average) one seek per b-tree read.
logtable(pageid_t internal_region_size = 1000, pageid_t datapage_region_size = 10000, pageid_t datapage_size = 1);
~logtable(); ~logtable();