MELSRV ABI DATABASES Z39.50 SERVER STATISTICS
Time period: 05/04/02 through 05/10/02
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 96 1,456
2-4 a.m. 188 3,249
4-6 a.m. 13 44
6-8 a.m. 53 198
8-10 a.m. 185 4,499
10-12 a.m. 494 9,878
12-2 p.m. 615 11,156
2-4 p.m. 784 15,558
4-6 p.m. 561 12,376
6-8 p.m. 395 8,257
8-10 p.m. 283 5,102
10-12 p.m. 193 2,868
__________ _____________ _________________
Total: 3,860 74,641
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 20
Davis 27
Irvine 12
Los Angeles 29
Riverside 0
San Diego 11
San Francisco 6
Santa Barbara 2
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 2,019
Searchlight 1,687
Other - UC 18
Other-Network UC 29
_____
3,860
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 77
Davis 101
Irvine 125
Los Angeles 959
Riverside 0
San Diego 6
San Francisco 123
Santa Barbara 23
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 72,275
Searchlight 469
Other - UC 323
Other-Network UC 160
_____
74,641
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 2.2
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 ABI Database Detailed Statistics
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Median session length (minutes:seconds) 0:03
Average session length (minutes:seconds) 9:12
Longest session recorded (minutes:seconds) 110:41
Average number of searches completed per session 0.0
Retrievals per search - median 5.0
Retrievals per search - average 1013.0
Retrievals per search - standard deviation 7268.1
Percent of searches completed with 0 results 32.3%
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 3,860 18.4%
PRESENT 14,312 68.3%
INIT or CLOSE 2,761 13.2%
OTHER 7 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 415 9.1% 123 29.6% 6 52.9 263.6
TITLE WORD 331 7.3% 129 39.0% 3 101.7 862.9
EXACT TITLE 29 0.6% 13 44.8% 1 4.6 12.4
JOURNAL 133 2.9% 66 49.6% 15 3070.0 18719.8
EXACT JOURNAL 506 11.1% 61 12.1% 546 2469.4 6732.9
SUBJECT 144 3.2% 76 52.8% 36 4039.7 12787.3
EXACT SUBJECT 49 1.1% 18 36.7% 49 479.5 850.3
KEYWORD 2,502 54.9% 879 35.1% 21 1370.7 9408.5
PUB TYPE 20 0.4% 6 30.0% 76 171.6 199.6
DATE 72 1.6% 19 26.4% 23 54.0 80.5
ADDED 30 0.7% 25 83.3% 17 22.8 21.4
LANGUAGE 24 0.5% 9 37.5% 43 372.5 938.2
GEOGRAPHIC NAME 0 0.0% 0 0.0% 0 0.0 0.0
SUBJ CATEGORY 13 0.3% 4 30.8% 4 347.3 575.2
COMPANY NAME 55 1.2% 15 27.3% 38 202.5 373.6
EX COMPANY NAME 20 0.4% 8 40.0% 56 297.1 411.2
DUNS 0 0.0% 0 0.0% 0 0.0 0.0
TICKER SYMBOL 0 0.0% 0 0.0% 0 0.0 0.0
ID NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 0 0.0% 0 0.0% 0 0.0 0.0
ISN 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 12 0.3% 0 0.0% 32 177.9 380.8
AT 194 4.3% 43 22.2% 120 2620.2 16712.8
Other indexes 5 0.1% 1 20.0% 1,104 12563.5 23658.0
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 582 15.1% 207 35.6% 17 1086.5 10659.7
Single 3,278 84.9% 1,038 31.7% 28 1563.6 8437.5
PRESENT commands, by type:
MARC 48.6%
OPAC 20.8%
SABmm/dd srv.abi MELSRV ABI DATABASES Z39.50 SERVER STATISTICS (weekly)