Used queries:
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1) Create collection
rasql -q 'create collection test GreySet' --user rasadmin --passwd rasadmin
2) Insert query
rasql -q 'insert into test values marray i in [0:100,0:100] values 1c tiling aligned [0:1,0:1] tile size 4' --user rasadmin --passwd rasadmin
3) Select query 
rasql -q 'select sdom(c) from test as c' --out string

Time measurement results:
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- run on home computer (slower)

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| Lockmgr versions               | create | insert | select |
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| Original lockmgr               | 0.081s | 2.083s | 7.745s |                         
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| No lockmgr                     | 0.067s | 2.060s | 0.055s |
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| Original lockmgr, no lock call | 0.062s | 2.360s | 2.873s |
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| Optimized lockmgr (curr. ver.) | 0.160s | 2.836s | 2.291s |
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- run on university computer

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| Lockmgr versions               | create | insert | select |
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| Optimized lockmgr (curr. ver.) | 0.045s | 1.718s | 0.878s |
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