MELSRV ABI DATABASES Z39.50 SERVER STATISTICS
Time period: 05/19/01 through 05/25/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 130 3,411
2-4 a.m. 161 2,922
4-6 a.m. 24 714
6-8 a.m. 47 350
8-10 a.m. 382 11,974
10-12 a.m. 905 19,582
12-2 p.m. 1,122 25,867
2-4 p.m. 1,359 42,606
4-6 p.m. 1,099 33,156
6-8 p.m. 606 22,183
8-10 p.m. 542 19,898
10-12 p.m. 366 9,112
__________ _____________ _________________
Total: 6,743 191,775
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 9
Davis 21
Irvine 1
Los Angeles 18
Riverside 7
San Diego 10
San Francisco 10
Santa Barbara 1
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 4,276
Searchlight 2,320
Other - UC 34
Other-Network UC 36
_____
6,743
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 243
Davis 31
Irvine 5
Los Angeles 258
Riverside 21
San Diego 103
San Francisco 193
Santa Barbara 6
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 189,934
Searchlight 41
Other - UC 354
Other-Network UC 586
_____
191,775
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.1
Standard deviation in seconds 2.5
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 ABI Database Detailed Statistics
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Median session length (minutes:seconds) 0:10
Average session length (minutes:seconds) 11:45
Longest session recorded (minutes:seconds) 207:05
Average number of searches completed per session 0.0
Retrievals per search - median 5.0
Retrievals per search - average 780.6
Retrievals per search - standard deviation 4448.4
Percent of searches completed with 0 results 30.7%
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 6,743 14.1%
PRESENT 36,828 77.2%
INIT or CLOSE 4,045 8.5%
OTHER 61 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 676 8.0% 173 25.6% 7 73.0 594.6
TITLE WORD 514 6.1% 185 36.0% 3 117.2 535.8
EXACT TITLE 51 0.6% 30 58.8% 1 22.5 56.8
JOURNAL 259 3.1% 111 42.9% 6 401.4 1392.3
EXACT JOURNAL 569 6.7% 96 16.9% 682 3230.4 8195.7
SUBJECT 324 3.8% 180 55.6% 29 1321.5 6485.9
EXACT SUBJECT 233 2.7% 65 27.9% 80 2980.2 9693.0
KEYWORD 4,574 53.9% 1,424 31.1% 27 924.2 4852.4
PUB TYPE 108 1.3% 13 12.0% 29 69.0 114.4
DATE 160 1.9% 29 18.1% 15 76.7 167.4
ADDED 19 0.2% 18 94.7% 12 12.0 0.0
LANGUAGE 102 1.2% 19 18.6% 29 119.4 312.6
GEOGRAPHIC NAME 0 0.0% 0 0.0% 0 0.0 0.0
SUBJ CATEGORY 18 0.2% 3 16.7% 12 13.5 14.3
COMPANY NAME 162 1.9% 49 30.2% 28 212.3 768.9
EX COMPANY NAME 18 0.2% 7 38.9% 80 194.1 294.5
DUNS 0 0.0% 0 0.0% 0 0.0 0.0
TICKER SYMBOL 2 0.0% 0 0.0% 1,626 1626.0 210.7
ID NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 1 0.0% 1 100% 0 0.0 0.0
ISN 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 92 1.1% 9 9.8% 41 632.6 1935.9
AT 593 7.0% 132 22.3% 51 2222.6 7597.7
Other indexes 8 0.1% 5 62.5% 21 230.0 374.2
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 1,354 20.1% 371 27.4% 22 1126.7 5335.0
Single 5,389 79.9% 1,699 31.5% 30 1126.3 5300.5
PRESENT commands, by type:
MARC 46.9%
OPAC 25.6%
SABmm/dd srv.abi MELSRV ABI DATABASES Z39.50 SERVER STATISTICS (weekly)