MELSRV MAGAZINE & JOURNAL DATABASES Z39.50 SERVER STATISTICS
Time period: 05/01/99 through 05/31/99
1.0 SUMMARY STATISTICS
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Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 4,244 158,678
2-4 a.m. 1,482 49,798
4-6 a.m. 475 17,013
6-8 a.m. 880 28,280
8-10 a.m. 7,235 203,195
10-12 a.m. 20,890 686,537
12-2 p.m. 27,241 912,383
2-4 p.m. 32,147 1,140,390
4-6 p.m. 27,499 932,994
6-8 p.m. 16,727 608,343
8-10 p.m. 15,730 556,134
10-12 p.m. 10,358 399,920
__________ _____________ _________________
Total: 164,908 5,693,665
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 62
Davis 57
Irvine 92
Los Angeles 34
Riverside 11
San Diego 1,270
San Francisco 15
Santa Barbara 0
Santa Cruz 449
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 157,202
Other - UC 5,560
Other-Network UC 156
_____
164,908
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 668
Davis 1,222
Irvine 381
Los Angeles 462
Riverside 136
San Diego 435
San Francisco 87
Santa Barbara 0
Santa Cruz 796
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 5,540,444
Other - UC 146,578
Other-Network UC 2,456
_____
5,693,665
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 1.5
Standard deviation in seconds 6.8
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.4
Standard deviation in seconds 2.2
2.0 MAGAZINE & JOURNAL Database Detailed Statistics
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Median session length (minutes:seconds) 26:43
Average session length (minutes:seconds) 31:23
Longest session recorded (minutes:seconds) 272:15
Average number of searches completed per session 0.0
Retrievals per search - median 5.0
Retrievals per search - average 773.7
Retrievals per search - standard deviation 13490
Percent of searches completed with 0 results 30.5%
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 164,904 12.3%
PRESENT 1,131,950 84.5%
INIT or CLOSE 40,866 3.1%
OTHER 1,215 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 19,845 8.5% 8,387 42.3% 6 75.8 740.3
TITLE WORD 17,828 7.6% 7,527 42.2% 5 436.2 9603.2
EXACT TITLE 2,647 1.1% 1,895 71.6% 1 107.7 781.4
JOURNAL TITLE 13,594 5.8% 8,008 58.9% 10 2810.5 16547.5
EXACT JOURNAL 5,578 2.4% 2,319 41.6% 654 5483.6 13183.7
SUBJECT WORD 23,496 10.0% 11,713 49.8% 14 501.5 11332.1
EXACT SUBJECT 9,955 4.3% 2,765 27.8% 12 3502.5 47407.9
KEYWORD 96,262 41.2% 21,140 22.0% 26 785.5 11019.8
DATE 5,185 2.2% 1,509 29.1% 20 214.3 1780.9
ADDED SINCE 398 0.2% 255 64.1% 9 496.0 3131.4
PUB TYPE 1,540 0.7% 714 46.4% 13 537.5 9435.0
SUBFILE 1,559 0.7% 635 40.7% 24 176.4 755.1
ID 52 0.0% 11 21.2% 1 1.0 0.0
ISSN 36 0.0% 28 77.8% 226 3451.9 6310.7
SIC 1 0.0% 0 0.0% 4,104 4104.0 0.0
ILLUS 56 0.0% 31 55.4% 15 68.6 201.9
ARTICLE 3,808 1.6% 1,006 26.4% 27 213.1 1231.9
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 31,943 13.7% 9,465 29.6% 32 766.0 6592.2
Other indexes 91 0.0% 66 72.5% 24 572.0 1740.6
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 54,254 32.9% 20,048 36.9% 19 589.0 5631.1
Single 110,650 67.1% 30,324 27.4% 21 1337.5 18957.9
PRESENT commands, by type:
MARC 44.2%
OPAC 33.3%