MELSRV CURRENT CONTENTS DATABASES Z39.50 SERVER STATISTICS
Time period: 03/03/01 through 03/09/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 703 11,327
2-4 a.m. 352 6,283
4-6 a.m. 301 1,076
6-8 a.m. 477 3,345
8-10 a.m. 1,366 20,204
10-12 a.m. 3,029 49,713
12-2 p.m. 3,238 52,368
2-4 p.m. 3,724 55,707
4-6 p.m. 3,002 51,869
6-8 p.m. 1,740 28,314
8-10 p.m. 1,247 18,253
10-12 p.m. 724 9,429
__________ _____________ _________________
Total: 19,903 307,888
1.1 SEARCH commands
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Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 398
Davis 374
Irvine 29
Los Angeles 209
Riverside 213
San Diego 179
San Francisco 188
Santa Barbara 63
Santa Cruz 91
Lawrence Berkeley 28
Lawrence Livermore 71
Los Alamos 0
MELWEB 12,668
Searchlight 4,801
Other - UC 164
Other-Network UC 427
_____
19,903
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 5,645
Davis 4,414
Irvine 178
Los Angeles 4,422
Riverside 2,085
San Diego 1,148
San Francisco 1,913
Santa Barbara 2,441
Santa Cruz 2,511
Lawrence Berkeley 219
Lawrence Livermore 698
Los Alamos 0
MELWEB 256,104
Searchlight 17,477
Other - UC 3,043
Other-Network UC 5,590
_____
307,888
1.3 Response time
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Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.4
Standard deviation in seconds 5.5
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.3
Standard deviation in seconds 0.7
2.0 CURRENT CONTENTS Database Detailed Statistics
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Median session length (minutes:seconds) 20:05
Average session length (minutes:seconds) 14:22
Longest session recorded (minutes:seconds) 205:03
Average number of searches completed per session 0.0
Retrievals per search - median 4.0
Retrievals per search - average 482.9
Retrievals per search - standard deviation 6636.8
Percent of searches completed with 0 results 28.4%
Percent of searches entered that are long 0.0%
Percent of long searches completed
(includes partial results) 0.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 19,903 18.1%
PRESENT 80,615 73.4%
INIT or CLOSE 9,184 8.4%
OTHER 106 0.1%
SEARCHes completed: RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. SEARCHes No. Index Median Avg. Dev.
______ _________ ______ _______ ______ __________ _______
By index:
PERSONAL AUTHOR 7,627 28.7% 1,768 23.2% 15 206.1 1975.5
TITLE WORD 11,786 44.4% 3,479 29.5% 11 474.9 3647.2
EXACT TITLE 238 0.9% 136 57.1% 1 45.0 250.1
JOURNAL 1,526 5.8% 661 43.3% 10 3649.1 28554.5
EXACT JOURNAL 766 2.9% 330 43.1% 558 3308.0 7953.0
DATE 695 2.6% 122 17.6% 7 125.4 840.2
ADDED SINCE 1,246 4.7% 985 79.1% 3 11.6 25.9
SUBFILE 200 0.8% 97 48.5% 26 207.2 968.2
LANGUAGE 436 1.6% 121 27.8% 25 408.4 1836.1
SUBJECT CATEGORY 174 0.7% 58 33.3% 12 149.8 772.4
PUB TYPE 189 0.7% 54 28.6% 27 149.9 336.1
ISN 1 0.0% 1 100% 0 0.0 0.0
ARTICLE 0 0.0% 0 0.0% 0 0.0 0.0
AT 1,627 6.1% 471 28.9% 18 920.0 5881.0
Other indexes 28 0.1% 23 82.1% 1 9.4 15.2
RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. SEARCHes No. Index Median Avg. Dev.
______ _________ ______ _______ ______ __________ _______
By number of indexes:
Multiple 5,450 27.4% 2,135 39.2% 7 408.0 3637.2
Single 14,453 72.6% 3,525 24.4% 20 755.6 8718.7
PRESENT commands, by type:
MARC 60.6%
OPAC 25.8%
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