MELSRV CATALOG DATABASES Z39.50 SERVER STATISTICS
Time period: 04/01/00 through 04/30/00
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 28,619 368,299
2-4 a.m. 18,230 177,811
4-6 a.m. 16,322 165,467
6-8 a.m. 22,681 311,184
8-10 a.m. 46,584 1,018,863
10-12 a.m. 79,220 1,983,920
12-2 p.m. 88,243 2,354,765
2-4 p.m. 94,353 2,490,404
4-6 p.m. 70,006 1,898,168
6-8 p.m. 46,327 1,093,886
8-10 p.m. 36,958 845,166
10-12 p.m. 28,103 617,006
__________ _____________ _________________
Total: 575,646 13,324,939
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 746
Davis 435
Irvine 1,385
Los Angeles 171
Riverside 20
San Diego 109
San Francisco 187
Santa Barbara 183
Santa Cruz 211
Lawrence Berkeley 78
Lawrence Livermore 17
Los Alamos 0
MELWEB 406,433
Searchlight 14,501
Other - UC 3,602
Other-Network UC 147,568
_____
575,646
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 10,740
Davis 17,114
Irvine 8,795
Los Angeles 3,490
Riverside 573
San Diego 2,011
San Francisco 1,129
Santa Barbara 2,928
Santa Cruz 1,619
Lawrence Berkeley 1,492
Lawrence Livermore 80
Los Alamos 0
MELWEB 11,841,932
Searchlight 7,834
Other - UC 63,438
Other-Network UC 1,361,764
_____
13,324,939
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.0
Standard deviation in seconds 7.2
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.7
Standard deviation in seconds 2.2
2.0 CATALOG Database Detailed Statistics
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Median session length (minutes:seconds) 20:28
Average session length (minutes:seconds) 15:46
Longest session recorded (minutes:seconds) 332:53
Average number of searches completed per session 0.0
Retrievals per search - median 1.0
Retrievals per search - average 95.7
Retrievals per search - standard deviation 1227.0
Percent of searches completed with 0 results 41.9%
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 575,646 18.0%
PRESENT 2,373,003 74.2%
INIT or CLOSE 245,076 7.7%
OTHER 5,007 0.2%
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 142827 17.0% 43,629 30.5% 6 75.2 594.0
CORPORATE AUTHOR 5,045 0.6% 2,292 45.4% 10 404.2 2812.7
EXACT CORP. AUT. 1,261 0.1% 273 21.6% 18 677.7 4501.2
TITLE WORD 200220 23.8% 71,377 35.6% 4 56.2 411.9
EXACT TITLE 56,620 6.7% 25,567 45.2% 2 30.8 255.6
SUBJECT 140510 16.7% 70,386 50.1% 29 438.9 3050.1
EXACT SUBJECT 17,007 2.0% 3,852 22.6% 16 224.1 947.4
UNIFORM TITLE 500 0.1% 150 30.0% 2 453.6 2687.8
SERIES 3,356 0.4% 885 26.4% 12 117.1 420.0
DATE 9,304 1.1% 2,984 32.1% 15 178.4 2602.6
ADDED SINCE 4,473 0.5% 4,219 94.3% 2 43.4 426.2
LANGUAGE 42,438 5.0% 17,917 42.2% 34 406.2 2076.3
LCCN 2,651 0.3% 1,153 43.5% 1 1.2 0.8
ISBN 55,219 6.6% 45,490 82.4% 1 1.3 16.7
ISSN 387 0.0% 353 91.2% 7 120.5 304.8
DLA ID 15 0.0% 12 80.0% 1 1.0 0.0
MUSIC PUBLISHER 101 0.0% 50 49.5% 5 48.7 145.9
GOV'T DOC NUM 176 0.0% 57 32.4% 1 1.8 3.2
REPORT NUM 48 0.0% 33 68.8% 1 1.4 0.6
STOCK NUM 35 0.0% 4 11.4% 1 297.3 491.7
GPO ITEM NUM 35 0.0% 26 74.3% 145 2270.3 5917.4
FORM 17,212 2.0% 5,978 34.7% 9 176.7 1512.3
MUSIC KEY 11 0.0% 5 45.5% 126 296.7 417.5
GEO CLASS 17 0.0% 6 35.3% 8 96.1 197.6
THEMATIC NUMBER 154 0.0% 131 85.1% 9 69.0 88.7
SCALE 35 0.0% 3 8.6% 4 59.3 294.1
AT 117095 13.9% 45,644 39.0% 10 167.1 1007.1
Other indexes 24,404 2.9% 7,854 32.2% 6 240.5 2113.8
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 196,149 34.1% 79,284 40.4% 6 164.2 1291.3
Single 379,497 65.9% 161894 42.7% 7 164.9 1752.1
PRESENT commands, by type:
MARC 38.0%
OPAC 44.9%
SCTmm/dd srv.cat MELSRV CATALOG DATABASES Z39.50 SERVER STATISTICS (weekly)