MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 02/01/01 through 02/28/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 235 5,780
2-4 a.m. 59 1,048
4-6 a.m. 23 94
6-8 a.m. 78 972
8-10 a.m. 348 3,151
10-12 a.m. 1,245 13,861
12-2 p.m. 1,495 15,916
2-4 p.m. 1,780 17,713
4-6 p.m. 1,442 19,240
6-8 p.m. 846 10,475
8-10 p.m. 720 8,747
10-12 p.m. 467 5,451
__________ _____________ _________________
Total: 8,738 102,448
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 17
Davis 28
Irvine 9
Los Angeles 10
Riverside 15
San Diego 125
San Francisco 2
Santa Barbara 2
Santa Cruz 3
Lawrence Berkeley 3
Lawrence Livermore 4
Los Alamos 0
MELWEB 4,553
Searchlight 3,533
Other - UC 412
Other-Network UC 22
_____
8,738
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 144
Davis 114
Irvine 319
Los Angeles 0
Riverside 33
San Diego 25
San Francisco 0
Santa Barbara 17
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 25
Los Alamos 0
MELWEB 93,882
Searchlight 3,543
Other - UC 3,605
Other-Network UC 741
_____
102,448
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 0.6
Standard deviation in seconds 1.9
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.3
Standard deviation in seconds 0.5
2.0 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 0:11
Average session length (minutes:seconds) 8:25
Longest session recorded (minutes:seconds) 120:59
Average number of searches completed per session 0.0
Retrievals per search - median 1.0
Retrievals per search - average 1087.7
Retrievals per search - standard deviation 9992.6
Percent of searches completed with 0 results 48.7%
Percent of searches entered that are long 0.1%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 8,738 24.8%
PRESENT 20,876 59.2%
INIT or CLOSE 5,620 15.9%
OTHER 35 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 513 4.9% 369 71.9% 4 62.0 172.3
TITLE WORD 802 7.7% 442 55.1% 15 706.7 5561.7
EXACT TITLE 89 0.9% 65 73.0% 6 105.3 237.1
JOURNAL TITLE 181 1.7% 137 75.7% 417 19021.5 32528.8
EXACT JOURNAL 221 2.1% 39 17.6% 2,339 15608.6 25620.7
SUBJECT WORD 626 6.0% 382 61.0% 18 285.8 1055.9
EXACT SUBJECT 187 1.8% 65 34.8% 19 1751.2 5647.8
KEYWORD 6,440 62.0% 2,961 46.0% 12 1520.4 13505.0
DATE 142 1.4% 70 49.3% 35 294.7 760.8
ADDED SINCE 46 0.4% 24 52.2% 10 28.7 41.2
PUB TYPE 33 0.3% 24 72.7% 19 129.7 206.0
SUBFILE 27 0.3% 20 74.1% 11 31.9 45.9
ID 7 0.1% 0 0.0% 1 1.0 0.0
ISSN 0 0.0% 0 0.0% 0 0.0 0.0
SIC 0 0.0% 0 0.0% 0 0.0 0.0
ILLUS 1 0.0% 0 0.0% 11 11.0 0.0
ARTICLE 59 0.6% 10 16.9% 40 346.0 959.3
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 989 9.5% 338 34.2% 8 1737.8 8983.5
Other indexes 20 0.2% 17 85.0% 341 290.7 87.2
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 1,464 16.8% 603 41.2% 11 1363.0 7844.4
Single 7,274 83.2% 3,651 50.2% 16 2299.4 14945.8
PRESENT commands, by type:
MARC 47.7%
OPAC 32.1%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w