MELSRV MAGAZINE & JOURNAL DATABASES Z39.50 SERVER STATISTICS
Time period: 02/01/99 through 02/28/99
1.0 SUMMARY STATISTICS
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Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 3,507 135,151
2-4 a.m. 1,105 38,508
4-6 a.m. 389 9,617
6-8 a.m. 651 13,143
8-10 a.m. 7,244 193,184
10-12 a.m. 18,780 586,537
12-2 p.m. 24,559 770,759
2-4 p.m. 29,637 916,239
4-6 p.m. 23,212 769,610
6-8 p.m. 14,457 488,617
8-10 p.m. 12,610 460,773
10-12 p.m. 8,199 305,855
__________ _____________ _________________
Total: 144,350 4,687,993
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 381
Davis 35
Irvine 562
Los Angeles 36
Riverside 2
San Diego 655
San Francisco 13
Santa Barbara 12
Santa Cruz 39
Lawrence Berkeley 1
Lawrence Livermore 0
Los Alamos 0
MELWEB 140,591
Other - UC 1,469
Other-Network UC 554
_____
144,350
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 4,729
Davis 673
Irvine 5,766
Los Angeles 324
Riverside 3
San Diego 36
San Francisco 59
Santa Barbara 20
Santa Cruz 460
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 4,652,639
Other - UC 19,839
Other-Network UC 3,445
_____
4,687,993
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 1.6
Standard deviation in seconds 7.5
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.4
Standard deviation in seconds 0.9
2.0 MAGAZINE & JOURNAL Database Detailed Statistics
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Median session length (minutes:seconds) 26:54
Average session length (minutes:seconds) 31:41
Longest session recorded (minutes:seconds) 270:37
Average number of searches completed per session 0.0
Retrievals per search - median 5.0
Retrievals per search - average 999.6
Retrievals per search - standard deviation 19293
Percent of searches completed with 0 results 32.8%
Percent of searches entered that are long 0.4%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 144,346 12.5%
PRESENT 977,368 84.5%
INIT or CLOSE 33,443 2.9%
OTHER 1,231 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 18,951 9.2% 8,336 44.0% 6 68.7 583.9
TITLE WORD 16,144 7.8% 7,368 45.6% 7 324.0 3102.2
EXACT TITLE 2,177 1.1% 1,673 76.8% 1 51.8 318.1
JOURNAL TITLE 12,498 6.0% 7,697 61.6% 16 2747.1 16424.3
EXACT JOURNAL 5,458 2.6% 2,412 44.2% 574 5087.5 11418.6
SUBJECT WORD 21,637 10.4% 11,305 52.2% 14 1071.0 21823.9
EXACT SUBJECT 9,268 4.5% 2,769 29.9% 16 4853.3 55384.1
KEYWORD 81,286 39.3% 19,304 23.7% 29 1142.9 20839.0
DATE 5,384 2.6% 1,803 33.5% 19 125.2 475.2
ADDED SINCE 199 0.1% 126 63.3% 4 25.5 56.6
PUB TYPE 1,877 0.9% 906 48.3% 15 948.9 21818.8
SUBFILE 925 0.4% 412 44.5% 28 208.8 809.0
ID 3 0.0% 3 100% 0 0.0 0.0
ISSN 112 0.1% 76 67.9% 58 610.2 1535.4
SIC 1 0.0% 1 100% 0 0.0 0.0
ILLUS 54 0.0% 32 59.3% 72 246.8 495.2
ARTICLE 3,446 1.7% 1,082 31.4% 28 303.9 2654.6
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 27,653 13.4% 8,703 31.5% 36 820.5 6305.0
Other indexes 14 0.0% 5 35.7% 215 521.1 701.6
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 48,943 33.9% 19,329 39.5% 19 622.7 6523.6
Single 95,403 66.1% 28,053 29.4% 23 1868.7 27883.9
PRESENT commands, by type:
MARC 42.5%
OPAC 34.9%