MELSRV CATALOG DATABASES Z39.50 SERVER STATISTICS
Time period: 11/01/99 through 11/30/99
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 21,932 463,390
2-4 a.m. 20,366 264,155
4-6 a.m. 19,730 263,876
6-8 a.m. 28,494 462,537
8-10 a.m. 57,580 1,339,766
10-12 a.m. 101,672 2,607,207
12-2 p.m. 111,163 3,127,212
2-4 p.m. 116,240 3,251,742
4-6 p.m. 90,974 2,533,823
6-8 p.m. 53,281 1,458,396
8-10 p.m. 41,480 1,149,996
10-12 p.m. 32,794 795,552
__________ _____________ _________________
Total: 695,706 17,717,652
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 837
Davis 945
Irvine 1,458
Los Angeles 357
Riverside 16
San Diego 133
San Francisco 179
Santa Barbara 129
Santa Cruz 198
Lawrence Berkeley 136
Lawrence Livermore 20
Los Alamos 0
MELWEB 529,474
Other - UC 4,033
Other-Network UC 157,791
_____
695,706
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 12,393
Davis 6,181
Irvine 12,353
Los Angeles 8,243
Riverside 76
San Diego 2,218
San Francisco 1,281
Santa Barbara 1,137
Santa Cruz 2,086
Lawrence Berkeley 3,249
Lawrence Livermore 626
Los Alamos 0
MELWEB 15,730,780
Other - UC 65,955
Other-Network UC 1,871,074
_____
17,717,652
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.4
Standard deviation in seconds 8.8
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.9
Standard deviation in seconds 2.0
2.0 CATALOG Database Detailed Statistics
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Median session length (minutes:seconds) 20:49
Average session length (minutes:seconds) 17:17
Longest session recorded (minutes:seconds) 270:09
Average number of searches completed per session 0.0
Retrievals per search - median 1.0
Retrievals per search - average 116.0
Retrievals per search - standard deviation 1256.2
Percent of searches completed with 0 results 40.3%
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 695,706 17.7%
PRESENT 2,983,479 75.9%
INIT or CLOSE 248,461 6.3%
OTHER 2,600 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 169190 15.7% 52,466 31.0% 6 75.6 563.5
CORPORATE AUTHOR 6,521 0.6% 3,011 46.2% 10 469.7 4578.8
EXACT CORP. AUT. 1,082 0.1% 296 27.4% 22 860.7 5939.7
TITLE WORD 234374 21.8% 82,172 35.1% 3 51.6 418.6
EXACT TITLE 61,156 5.7% 28,552 46.7% 2 30.3 265.0
SUBJECT 195562 18.2% 96,309 49.2% 28 416.2 2457.5
EXACT SUBJECT 23,462 2.2% 5,777 24.6% 15 225.0 935.9
UNIFORM TITLE 1,083 0.1% 259 23.9% 2 281.8 2102.0
SERIES 4,625 0.4% 1,265 27.3% 9 117.7 417.8
DATE 12,757 1.2% 4,140 32.4% 16 233.0 2489.9
ADDED SINCE 2,658 0.2% 2,391 90.0% 3 91.3 647.9
LANGUAGE 65,468 6.1% 27,294 41.7% 31 397.1 2459.9
LCCN 2,669 0.2% 1,381 51.7% 1 2.9 57.9
ISBN 41,706 3.9% 30,176 72.4% 1 1.2 11.4
ISSN 854 0.1% 765 89.6% 2 14.2 24.2
DLA ID 22 0.0% 14 63.6% 1 1.0 0.0
MUSIC PUBLISHER 101 0.0% 59 58.4% 4 208.0 922.6
GOV'T DOC NUM 281 0.0% 131 46.6% 1 113.3 1005.9
REPORT NUM 76 0.0% 51 67.1% 1 3.1 6.0
STOCK NUM 30 0.0% 2 6.7% 1 64.6 194.9
GPO ITEM NUM 48 0.0% 29 60.4% 71 364.5 513.8
FORM 25,003 2.3% 9,035 36.1% 9 238.1 2755.0
MUSIC KEY 28 0.0% 11 39.3% 94 567.4 1375.7
GEO CLASS 15 0.0% 4 26.7% 14 2920.5 9406.2
THEMATIC NUMBER 273 0.0% 221 80.9% 11 75.4 188.8
SCALE 24 0.0% 7 29.2% 23 38.9 49.2
AT 177813 16.5% 69,035 38.8% 10 164.9 1061.6
Other indexes 47,869 4.5% 18,785 39.2% 10 481.9 2362.1
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 271,105 39.0% 108015 39.8% 6 171.7 1444.3
Single 424,601 61.0% 172072 40.5% 8 208.7 1724.7
PRESENT commands, by type:
MARC 38.7%
OPAC 44.3%