MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 03/01/02 through 03/31/02
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 152 1,278
2-4 a.m. 176 1,531
4-6 a.m. 57 358
6-8 a.m. 58 671
8-10 a.m. 371 1,213
10-12 a.m. 770 4,622
12-2 p.m. 1,042 5,491
2-4 p.m. 1,265 6,864
4-6 p.m. 921 3,577
6-8 p.m. 575 5,304
8-10 p.m. 438 4,917
10-12 p.m. 351 2,443
__________ _____________ _________________
Total: 6,176 38,269
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 11
Davis 11
Irvine 5
Los Angeles 21
Riverside 10
San Diego 9
San Francisco 3
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 2,231
Searchlight 3,269
Other - UC 593
Other-Network UC 13
_____
6,176
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 5
Davis 15
Irvine 0
Los Angeles 78
Riverside 0
San Diego 4
San Francisco 24
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 36,368
Searchlight 554
Other - UC 1,216
Other-Network UC 5
_____
38,269
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 0.3
Standard deviation in seconds 1.7
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.2
Standard deviation in seconds 0.3
2.0 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 0:04
Average session length (minutes:seconds) 5:21
Longest session recorded (minutes:seconds) 120:31
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 1253.2
Retrievals per search - standard deviation 9202.9
Percent of searches completed with 0 results 52.4%
Percent of searches entered that are long 0.2%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 6,176 33.8%
PRESENT 7,346 40.2%
INIT or CLOSE 4,754 26.0%
OTHER 12 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 295 4.3% 195 66.1% 2 79.7 443.7
TITLE WORD 407 6.0% 227 55.8% 13 812.9 4103.1
EXACT TITLE 44 0.6% 41 93.2% 1 1.0 0.0
JOURNAL TITLE 99 1.5% 76 76.8% 4 5687.7 13634.4
EXACT JOURNAL 345 5.1% 29 8.4% 1,261 6442.7 10036.1
SUBJECT WORD 271 4.0% 169 62.4% 13 539.7 3298.3
EXACT SUBJECT 89 1.3% 37 41.6% 14 1544.9 6237.7
KEYWORD 4,798 70.5% 2,574 53.6% 16 2375.9 14447.0
DATE 62 0.9% 24 38.7% 19 76.4 164.3
ADDED SINCE 24 0.4% 16 66.7% 31 65.9 90.7
PUB TYPE 15 0.2% 7 46.7% 32 1333.6 3644.8
SUBFILE 3 0.0% 2 66.7% 2 2.0 0.0
ID 0 0.0% 0 0.0% 0 0.0 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 18 0.3% 10 55.6% 19 19.3 14.5
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 325 4.8% 144 44.3% 11 1037.0 5362.3
Other indexes 9 0.1% 8 88.9% 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 546 8.8% 280 51.3% 11 753.7 4449.9
Single 5,630 91.2% 2,955 52.5% 18 2818.4 13756.5
PRESENT commands, by type:
MARC 48.6%
OPAC 30.8%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w