MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 08/01/99 through 08/31/99
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 349 874
2-4 a.m. 336 1,366
4-6 a.m. 287 190
6-8 a.m. 396 281
8-10 a.m. 620 6,005
10-12 a.m. 945 7,611
12-2 p.m. 980 7,999
2-4 p.m. 1,171 13,179
4-6 p.m. 1,141 7,721
6-8 p.m. 604 3,580
8-10 p.m. 433 2,748
10-12 p.m. 382 2,657
__________ _____________ _________________
Total: 7,644 54,211
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 29
Davis 7
Irvine 3
Los Angeles 21
Riverside 0
San Diego 4,921
San Francisco 2
Santa Barbara 0
Santa Cruz 169
Lawrence Berkeley 0
Lawrence Livermore 2
Los Alamos 0
MELWEB 1,974
Other - UC 499
Other-Network UC 17
_____
7,644
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 312
Davis 6
Irvine 20
Los Angeles 117
Riverside 0
San Diego 0
San Francisco 0
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 50,185
Other - UC 3,508
Other-Network UC 63
_____
54,211
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 0.2
Standard deviation in seconds 0.9
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.5
Standard deviation in seconds 1.2
2.0 COMPUTER ARTICLES Database Detailed Statistics
_________________________________________
Median session length (minutes:seconds) 0:00
Average session length (minutes:seconds) 3:19
Longest session recorded (minutes:seconds) 171:54
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 700.2
Retrievals per search - standard deviation 9110.5
Percent of searches completed with 0 results 69.5%
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 7,644 32.2%
PRESENT 10,147 42.7%
INIT or CLOSE 5,968 25.1%
OTHER 10 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 263 3.2% 200 76.0% 3 62.2 250.7
TITLE WORD 580 7.0% 288 49.7% 18 757.7 4862.7
EXACT TITLE 42 0.5% 39 92.9% 1 2.7 2.9
JOURNAL TITLE 115 1.4% 70 60.9% 19 929.0 4756.5
EXACT JOURNAL 90 1.1% 19 21.1% 751 6469.9 10825.6
SUBJECT WORD 289 3.5% 171 59.2% 28 390.2 1704.5
EXACT SUBJECT 132 1.6% 40 30.3% 26 538.9 2225.5
KEYWORD 6,370 76.5% 4,630 72.7% 58 2601.6 18670.2
DATE 92 1.1% 35 38.0% 26 115.1 546.9
ADDED SINCE 36 0.4% 27 75.0% 4 24.1 53.6
PUB TYPE 33 0.4% 14 42.4% 42 594.7 2052.8
SUBFILE 4 0.0% 3 75.0% 42 42.0 0.0
ID 13 0.2% 0 0.0% 1 1.0 0.0
ISSN 1 0.0% 1 100% 0 0.0 0.0
SIC 0 0.0% 0 0.0% 0 0.0 0.0
ILLUS 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 72 0.9% 13 18.1% 314 2019.3 5453.5
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 193 2.3% 80 41.4% 50 1120.1 4913.1
Other indexes 2 0.0% 0 0.0% 2 2.0 0.0
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 560 7.3% 237 42.3% 32 799.3 3789.6
Single 7,084 92.7% 5,072 71.6% 47 2531.7 17564.3
PRESENT commands, by type:
MARC 48.2%
OPAC 25.5%