MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 11/01/99 through 11/30/99
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 201 4,326
2-4 a.m. 68 2,239
4-6 a.m. 44 905
6-8 a.m. 100 627
8-10 a.m. 541 6,552
10-12 a.m. 1,156 16,825
12-2 p.m. 1,804 29,069
2-4 p.m. 1,689 24,595
4-6 p.m. 1,499 27,738
6-8 p.m. 899 14,653
8-10 p.m. 680 11,820
10-12 p.m. 534 9,611
__________ _____________ _________________
Total: 9,215 148,960
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 28
Davis 12
Irvine 0
Los Angeles 4
Riverside 0
San Diego 1,421
San Francisco 58
Santa Barbara 2
Santa Cruz 320
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 5,843
Other - UC 1,487
Other-Network UC 40
_____
9,215
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 48
Davis 1
Irvine 0
Los Angeles 3
Riverside 0
San Diego 28
San Francisco 1,651
Santa Barbara 0
Santa Cruz 1
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 138,911
Other - UC 7,525
Other-Network UC 792
_____
148,960
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 0.7
Standard deviation in seconds 2.7
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 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 0:05
Average session length (minutes:seconds) 12:30
Longest session recorded (minutes:seconds) 128:14
Average number of searches completed per session 0.0
Retrievals per search - median 1.0
Retrievals per search - average 960.0
Retrievals per search - standard deviation 9758.9
Percent of searches completed with 0 results 45.8%
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 9,215 21.2%
PRESENT 30,307 69.6%
INIT or CLOSE 3,996 9.2%
OTHER 21 0.0%
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 789 6.8% 600 76.0% 5 149.3 415.3
TITLE WORD 1,267 10.9% 727 57.4% 10 326.6 1948.1
EXACT TITLE 152 1.3% 140 92.1% 3 3.6 2.9
JOURNAL TITLE 240 2.1% 182 75.8% 1,000 10104.5 27648.8
EXACT JOURNAL 219 1.9% 75 34.2% 4,132 12960.7 17850.0
SUBJECT WORD 1,120 9.6% 741 66.2% 16 564.0 3819.6
EXACT SUBJECT 323 2.8% 155 48.0% 10 814.3 3632.1
KEYWORD 5,715 49.1% 2,054 35.9% 13 1541.1 14129.2
DATE 245 2.1% 87 35.5% 16 130.6 547.7
ADDED SINCE 50 0.4% 33 66.0% 7 152.7 550.8
PUB TYPE 76 0.7% 51 67.1% 31 246.4 627.3
SUBFILE 36 0.3% 25 69.4% 271 1178.7 1805.1
ID 36 0.3% 0 0.0% 1 1.0 0.0
ISSN 0 0.0% 0 0.0% 0 0.0 0.0
SIC 1 0.0% 0 0.0% 922 922.0 0.0
ILLUS 2 0.0% 2 100% 0 0.0 0.0
ARTICLE 184 1.6% 52 28.3% 91 1904.8 7998.2
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 1,147 9.9% 397 34.6% 13 1257.2 7693.7
Other indexes 31 0.3% 10 32.3% 71 10514.2 27394.3
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 1,924 20.9% 823 42.8% 15 1116.5 6946.9
Single 7,291 79.1% 3,398 46.6% 14 1956.6 14485.3
PRESENT commands, by type:
MARC 51.0%
OPAC 28.9%