MELSRV CATALOG DATABASES Z39.50 SERVER STATISTICS
Time period: 03/01/99 through 03/31/99
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 18,845 265,227
2-4 a.m. 10,125 139,328
4-6 a.m. 11,869 119,083
6-8 a.m. 17,251 220,347
8-10 a.m. 36,216 775,230
10-12 a.m. 59,081 1,688,613
12-2 p.m. 63,144 2,001,652
2-4 p.m. 67,406 2,180,052
4-6 p.m. 54,708 1,819,785
6-8 p.m. 34,904 1,018,734
8-10 p.m. 27,997 835,652
10-12 p.m. 27,941 514,542
__________ _____________ _________________
Total: 429,487 11,578,245
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 1,113
Davis 382
Irvine 2,266
Los Angeles 519
Riverside 35
San Diego 201
San Francisco 308
Santa Barbara 144
Santa Cruz 193
Lawrence Berkeley 15
Lawrence Livermore 40
Los Alamos 0
MELWEB 311,830
Other - UC 5,409
Other-Network UC 107,032
_____
429,487
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 12,037
Davis 2,415
Irvine 13,175
Los Angeles 3,470
Riverside 200
San Diego 1,413
San Francisco 1,836
Santa Barbara 709
Santa Cruz 2,022
Lawrence Berkeley 334
Lawrence Livermore 205
Los Alamos 0
MELWEB 10,743,667
Other - UC 48,000
Other-Network UC 748,762
_____
11,578,245
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.9
Standard deviation in seconds 10.8
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.6
Standard deviation in seconds 2.9
2.0 CATALOG Database Detailed Statistics
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Median session length (minutes:seconds) 21:28
Average session length (minutes:seconds) 19:36
Longest session recorded (minutes:seconds) 301:50
Average number of searches completed per session 0.0
Retrievals per search - median 1.0
Retrievals per search - average 117.8
Retrievals per search - standard deviation 1898.0
Percent of searches completed with 0 results 40.2%
Percent of searches entered that are long 1.8%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 429,482 16.8%
PRESENT 1,994,480 78.0%
INIT or CLOSE 131,649 5.1%
OTHER 1,837 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 110220 17.5% 37,778 34.3% 7 84.1 471.1
CORPORATE AUTHOR 4,842 0.8% 2,298 47.5% 9 495.8 3297.6
EXACT CORP. AUT. 880 0.1% 264 30.0% 24 858.7 3864.2
TITLE WORD 153078 24.3% 60,349 39.4% 4 81.5 641.2
EXACT TITLE 47,286 7.5% 22,901 48.4% 2 35.6 289.7
SUBJECT 112586 17.9% 56,019 49.8% 33 520.1 4787.5
EXACT SUBJECT 14,038 2.2% 3,520 25.1% 15 257.2 1155.7
UNIFORM TITLE 599 0.1% 110 18.4% 7 919.1 2908.4
SERIES 2,684 0.4% 690 25.7% 16 304.5 1295.1
DATE 6,048 1.0% 2,128 35.2% 12 176.3 2129.3
ADDED SINCE 489 0.1% 439 89.8% 3 346.9 1176.0
LANGUAGE 32,581 5.2% 13,912 42.7% 39 470.8 2858.3
LCCN 3,045 0.5% 1,102 36.2% 1 1.3 1.3
ISBN 18,638 3.0% 9,527 51.1% 1 1.4 17.4
ISSN 668 0.1% 600 89.8% 5 34.1 160.8
DLA ID 15 0.0% 6 40.0% 1 1.0 0.0
MUSIC PUBLISHER 82 0.0% 57 69.5% 17 38.2 75.0
GOV'T DOC NUM 163 0.0% 79 48.5% 1 1.3 0.7
REPORT NUM 61 0.0% 40 65.6% 1 20.6 88.8
STOCK NUM 17 0.0% 0 0.0% 1 272.7 373.7
GPO ITEM NUM 48 0.0% 32 66.7% 8 190.9 465.1
FORM 10,707 1.7% 4,299 40.1% 10 282.9 2823.3
MUSIC KEY 15 0.0% 8 53.3% 17 855.6 1976.4
GEO CLASS 0 0.0% 0 0.0% 0 0.0 0.0
THEMATIC NUMBER 170 0.0% 122 71.8% 16 506.0 1806.8
SCALE 18 0.0% 18 100% 0 0.0 0.0
AT 88,896 14.1% 36,814 41.4% 12 218.8 1187.5
Other indexes 21,920 3.5% 7,539 34.4% 7 284.2 1844.3
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 151,566 35.3% 65,983 43.5% 6 214.2 1410.0
Single 277,916 64.7% 106525 38.3% 7 188.3 2830.3
PRESENT commands, by type:
MARC 35.3%
OPAC 48.4%