MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 02/10/01 through 02/16/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 89 1,835
2-4 a.m. 19 33
4-6 a.m. 7 11
6-8 a.m. 20 123
8-10 a.m. 82 967
10-12 a.m. 371 3,131
12-2 p.m. 373 4,322
2-4 p.m. 446 5,411
4-6 p.m. 388 4,220
6-8 p.m. 261 3,263
8-10 p.m. 184 2,054
10-12 p.m. 96 949
__________ _____________ _________________
Total: 2,336 26,319
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 1
Davis 12
Irvine 5
Los Angeles 6
Riverside 2
San Diego 16
San Francisco 0
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 2
Lawrence Livermore 0
Los Alamos 0
MELWEB 1,292
Searchlight 855
Other - UC 139
Other-Network UC 6
_____
2,336
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 0
Davis 0
Irvine 318
Los Angeles 0
Riverside 0
San Diego 0
San Francisco 0
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 23,940
Searchlight 1,239
Other - UC 787
Other-Network UC 35
_____
26,319
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 1.6
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.2
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) 9:18
Longest session recorded (minutes:seconds) 80:48
Average number of searches completed per session 0.0
Retrievals per search - median 1.0
Retrievals per search - average 1541.0
Retrievals per search - standard deviation 10908
Percent of searches completed with 0 results 44.8%
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 2,336 23.9%
PRESENT 5,944 60.7%
INIT or CLOSE 1,497 15.3%
OTHER 14 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 127 4.6% 103 81.1% 6 92.7 181.0
TITLE WORD 184 6.7% 83 45.1% 15 518.7 1821.2
EXACT TITLE 30 1.1% 21 70.0% 7 63.6 113.3
JOURNAL TITLE 54 2.0% 37 68.5% 78,099 43643.8 37749.2
EXACT JOURNAL 67 2.4% 9 13.4% 3,806 27859.5 34229.0
SUBJECT WORD 165 6.0% 105 63.6% 8 270.4 1004.3
EXACT SUBJECT 36 1.3% 11 30.6% 16 804.6 2694.6
KEYWORD 1,744 63.5% 723 41.5% 6 1135.2 10595.3
DATE 29 1.1% 18 62.1% 45 1009.5 1533.3
ADDED SINCE 11 0.4% 7 63.6% 32 56.5 68.2
PUB TYPE 10 0.4% 8 80.0% 282 281.5 396.7
SUBFILE 2 0.1% 2 100% 0 0.0 0.0
ID 2 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 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 15 0.5% 1 6.7% 17 787.9 1695.4
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 260 9.5% 77 29.6% 2 2802.1 12991.3
Other indexes 9 0.3% 9 100% 0 0.0 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 377 16.1% 148 39.3% 4 2358.9 11653.6
Single 1,959 83.9% 898 45.8% 10 2883.7 15120.2
PRESENT commands, by type:
MARC 49.1%
OPAC 26.5%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w