MELSRV CURRENT CONTENTS DATABASES Z39.50 SERVER STATISTICS
Time period: 03/01/99 through 03/31/99
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 1,065 18,280
2-4 a.m. 862 11,646
4-6 a.m. 272 5,649
6-8 a.m. 541 11,264
8-10 a.m. 4,382 83,683
10-12 a.m. 9,078 201,201
12-2 p.m. 8,792 181,355
2-4 p.m. 10,772 216,287
4-6 p.m. 8,161 180,994
6-8 p.m. 4,206 83,025
8-10 p.m. 2,798 49,981
10-12 p.m. 2,031 41,282
__________ _____________ _________________
Total: 52,960 1,084,647
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 1,006
Davis 803
Irvine 708
Los Angeles 468
Riverside 48
San Diego 1,706
San Francisco 495
Santa Barbara 647
Santa Cruz 147
Lawrence Berkeley 233
Lawrence Livermore 148
Los Alamos 0
MELWEB 44,241
Other - UC 1,196
Other-Network UC 1,114
_____
52,960
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 11,620
Davis 12,296
Irvine 6,350
Los Angeles 4,235
Riverside 567
San Diego 3,924
San Francisco 3,834
Santa Barbara 7,846
Santa Cruz 219
Lawrence Berkeley 11,649
Lawrence Livermore 3,667
Los Alamos 0
MELWEB 988,841
Other - UC 14,010
Other-Network UC 15,589
_____
1,084,647
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 7.2
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.4
Standard deviation in seconds 0.8
2.0 CURRENT CONTENTS Database Detailed Statistics
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Median session length (minutes:seconds) 22:30
Average session length (minutes:seconds) 22:21
Longest session recorded (minutes:seconds) 220:39
Average number of searches completed per session 0.0
Retrievals per search - median 6.0
Retrievals per search - average 710.2
Retrievals per search - standard deviation 7501.5
Percent of searches completed with 0 results 29.4%
Percent of searches entered that are long 0.0%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 52,960 15.7%
PRESENT 270,334 80.0%
INIT or CLOSE 14,308 4.2%
OTHER 161 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 22,579 31.1% 5,312 23.5% 18 236.8 3519.8
TITLE WORD 27,745 38.3% 9,207 33.2% 15 814.7 5047.6
EXACT TITLE 748 1.0% 453 60.6% 1 132.3 1128.3
JOURNAL 6,372 8.8% 3,221 50.5% 23 4146.3 27059.1
EXACT JOURNAL 2,508 3.5% 790 31.5% 688 3743.8 7942.2
DATE 2,522 3.5% 594 23.6% 9 239.5 1971.6
ADDED SINCE 1,048 1.4% 812 77.5% 1 163.2 1692.7
SUBFILE 539 0.7% 239 44.3% 19 485.8 2087.5
LANGUAGE 1,350 1.9% 380 28.1% 29 553.5 3086.0
SUBJECT CATEGORY 1,016 1.4% 438 43.1% 14 392.5 3340.1
PUB TYPE 674 0.9% 194 28.8% 36 818.1 8190.2
ISN 2 0.0% 2 100% 0 0.0 0.0
ARTICLE 0 0.0% 0 0.0% 0 0.0 0.0
AT 5,376 7.4% 1,824 33.9% 27 741.3 3553.4
Other indexes 3 0.0% 2 66.7% 48 48.0 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 15,478 29.2% 6,194 40.0% 10 514.2 5403.8
Single 37,482 70.8% 9,383 25.0% 28 1168.6 9793.5
PRESENT commands, by type:
MARC 58.6%
OPAC 25.7%