MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 05/01/99 through 05/31/99
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 219 4,159
2-4 a.m. 103 2,203
4-6 a.m. 30 626
6-8 a.m. 85 328
8-10 a.m. 443 4,339
10-12 a.m. 1,237 15,022
12-2 p.m. 1,398 16,811
2-4 p.m. 1,657 20,686
4-6 p.m. 1,232 18,460
6-8 p.m. 585 6,257
8-10 p.m. 684 6,566
10-12 p.m. 494 7,203
__________ _____________ _________________
Total: 8,167 102,660
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 14
Davis 19
Irvine 15
Los Angeles 20
Riverside 0
San Diego 1,290
San Francisco 6
Santa Barbara 3
Santa Cruz 351
Lawrence Berkeley 0
Lawrence Livermore 7
Los Alamos 0
MELWEB 5,570
Other - UC 842
Other-Network UC 30
_____
8,167
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 81
Davis 8
Irvine 12
Los Angeles 80
Riverside 0
San Diego 0
San Francisco 1
Santa Barbara 29
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 1
Los Alamos 0
MELWEB 95,840
Other - UC 6,356
Other-Network UC 252
_____
102,660
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 0.9
Standard deviation in seconds 4.9
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.3
Standard deviation in seconds 0.8
2.0 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 0:02
Average session length (minutes:seconds) 12:00
Longest session recorded (minutes:seconds) 158:03
Average number of searches completed per session 0.0
Retrievals per search - median 1.0
Retrievals per search - average 1462.2
Retrievals per search - standard deviation 16646
Percent of searches completed with 0 results 45.4%
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 8,167 24.6%
PRESENT 21,829 65.7%
INIT or CLOSE 3,194 9.6%
OTHER 31 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 549 5.4% 374 68.1% 5 178.0 637.2
TITLE WORD 1,055 10.4% 565 53.6% 29 1709.8 6410.5
EXACT TITLE 92 0.9% 57 62.0% 1 915.4 4282.5
JOURNAL TITLE 236 2.3% 170 72.0% 533 10092.1 20880.3
EXACT JOURNAL 148 1.5% 40 27.0% 6,303 13126.4 17507.1
SUBJECT WORD 962 9.5% 606 63.0% 16 773.6 3598.9
EXACT SUBJECT 217 2.1% 90 41.5% 31 1568.7 5160.4
KEYWORD 5,407 53.1% 2,135 39.5% 21 2650.3 25666.4
DATE 201 2.0% 63 31.3% 47 384.0 932.8
ADDED SINCE 40 0.4% 16 40.0% 66 152.7 344.9
PUB TYPE 96 0.9% 52 54.2% 13 445.4 1846.7
SUBFILE 32 0.3% 15 46.9% 6 23.5 26.9
ID 15 0.1% 1 6.7% 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 2 0.0% 0 0.0% 194 194.0 0.0
ARTICLE 129 1.3% 39 30.2% 69 824.7 1958.2
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 989 9.7% 423 42.8% 30 3242.1 23010.3
Other indexes 5 0.0% 2 40.0% 114 112.0 101.0
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 1,648 20.2% 743 45.1% 30 2308.4 18622.0
Single 6,519 79.8% 2,967 45.5% 21 2773.9 23340.9
PRESENT commands, by type:
MARC 48.0%
OPAC 30.7%