MELSRV CATALOG DATABASES Z39.50 SERVER STATISTICS
Time period: 02/01/99 through 02/28/99
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 18,128 271,907
2-4 a.m. 12,402 125,673
4-6 a.m. 8,645 90,599
6-8 a.m. 13,853 188,066
8-10 a.m. 30,989 710,741
10-12 a.m. 62,492 1,612,275
12-2 p.m. 60,884 2,198,187
2-4 p.m. 71,313 2,333,483
4-6 p.m. 59,472 1,846,749
6-8 p.m. 32,478 988,028
8-10 p.m. 26,008 752,226
10-12 p.m. 24,526 540,511
__________ _____________ _________________
Total: 421,190 11,658,445
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 1,186
Davis 406
Irvine 2,374
Los Angeles 316
Riverside 28
San Diego 230
San Francisco 454
Santa Barbara 79
Santa Cruz 210
Lawrence Berkeley 49
Lawrence Livermore 11
Los Alamos 0
MELWEB 293,011
Other - UC 33,164
Other-Network UC 89,672
_____
421,190
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 21,828
Davis 4,990
Irvine 16,687
Los Angeles 3,941
Riverside 175
San Diego 2,999
San Francisco 1,617
Santa Barbara 772
Santa Cruz 1,454
Lawrence Berkeley 195
Lawrence Livermore 130
Los Alamos 0
MELWEB 10,561,020
Other - UC 394,939
Other-Network UC 647,698
_____
11,658,445
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 2.0
Standard deviation in seconds 9.7
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.8
Standard deviation in seconds 3.7
2.0 CATALOG Database Detailed Statistics
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Median session length (minutes:seconds) 20:52
Average session length (minutes:seconds) 16:50
Longest session recorded (minutes:seconds) 277:15
Average number of searches completed per session 421190
Retrievals per search - median 1.0
Retrievals per search - average 122.2
Retrievals per search - standard deviation 1762.6
Percent of searches completed with 0 results 39.7%
Percent of searches entered that are long 1.9%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 421,187 16.6%
PRESENT 1,965,127 77.7%
INIT or CLOSE 141,906 5.6%
OTHER 1,645 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 103726 16.2% 34,657 33.4% 7 81.6 453.3
CORPORATE AUTHOR 4,168 0.7% 1,974 47.4% 7 435.2 3298.0
EXACT CORP. AUT. 688 0.1% 215 31.3% 18 814.9 3496.5
TITLE WORD 152005 23.7% 57,925 38.1% 4 69.4 458.3
EXACT TITLE 36,857 5.8% 17,592 47.7% 2 37.1 404.0
SUBJECT 117602 18.4% 57,959 49.3% 33 539.5 4315.7
EXACT SUBJECT 13,407 2.1% 3,441 25.7% 14 219.4 881.9
UNIFORM TITLE 441 0.1% 93 21.1% 2 351.3 2300.3
SERIES 2,740 0.4% 728 26.6% 8 125.2 416.8
DATE 6,350 1.0% 2,289 36.0% 13 165.8 2171.6
ADDED SINCE 444 0.1% 397 89.4% 5 346.8 1125.6
LANGUAGE 34,278 5.3% 14,656 42.8% 39 562.0 2943.8
LCCN 2,756 0.4% 1,833 66.5% 1 1.4 1.3
ISBN 21,803 3.4% 10,973 50.3% 1 1.7 27.2
ISSN 748 0.1% 614 82.1% 2 14.7 53.0
DLA ID 1 0.0% 1 100% 0 0.0 0.0
MUSIC PUBLISHER 66 0.0% 34 51.5% 4 456.3 2160.3
GOV'T DOC NUM 149 0.0% 61 40.9% 1 1.6 2.8
REPORT NUM 65 0.0% 35 53.8% 1 1.3 0.7
STOCK NUM 16 0.0% 6 37.5% 1 224.1 401.2
GPO ITEM NUM 24 0.0% 15 62.5% 322 1038.7 1397.2
FORM 10,901 1.7% 4,251 39.0% 9 240.5 1977.6
MUSIC KEY 6 0.0% 4 66.7% 13 12.5 10.6
GEO CLASS 5 0.0% 4 80.0% 2 2.0 0.0
THEMATIC NUMBER 180 0.0% 159 88.3% 16 38.8 58.9
SCALE 6 0.0% 2 33.3% 10 9.5 6.2
AT 112044 17.5% 43,418 38.8% 10 189.9 983.4
Other indexes 19,299 3.0% 6,803 35.3% 7 278.3 2021.6
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 170,860 40.6% 69,998 41.0% 7 214.1 1413.8
Single 250,327 59.4% 97,042 38.8% 7 194.8 2682.1
PRESENT commands, by type:
MARC 35.7%
OPAC 49.0%