MELSRV CATALOG DATABASES Z39.50 SERVER STATISTICS
Time period: 03/01/01 through 03/31/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 31,570 476,478
2-4 a.m. 23,543 322,648
4-6 a.m. 25,309 330,026
6-8 a.m. 41,154 533,076
8-10 a.m. 67,684 1,258,462
10-12 a.m. 98,466 2,110,192
12-2 p.m. 100,915 2,488,291
2-4 p.m. 101,976 2,588,252
4-6 p.m. 81,037 2,059,173
6-8 p.m. 52,013 1,170,007
8-10 p.m. 39,835 911,093
10-12 p.m. 38,361 702,493
__________ _____________ _________________
Total: 701,863 14,950,191
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 1,418
Davis 845
Irvine 760
Los Angeles 875
Riverside 78
San Diego 365
San Francisco 107
Santa Barbara 481
Santa Cruz 74
Lawrence Berkeley 45
Lawrence Livermore 12
Los Alamos 0
MELWEB 435,150
Searchlight 16,004
Other - UC 3,711
Other-Network UC 241,938
_____
701,863
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 17,427
Davis 7,840
Irvine 5,481
Los Angeles 8,556
Riverside 250
San Diego 3,339
San Francisco 423
Santa Barbara 5,624
Santa Cruz 634
Lawrence Berkeley 935
Lawrence Livermore 37
Los Alamos 0
MELWEB 12,558,683
Searchlight 22,256
Other - UC 40,554
Other-Network UC 2,278,152
_____
14,950,191
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.3
Standard deviation in seconds 7.7
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.9
Standard deviation in seconds 2.1
2.0 CATALOG Database Detailed Statistics
_________________________________________
Median session length (minutes:seconds) 20:02
Average session length (minutes:seconds) 14:08
Longest session recorded (minutes:seconds) 376:20
Average number of searches completed per session 0.0
Retrievals per search - median 1.0
Retrievals per search - average 93.5
Retrievals per search - standard deviation 1251.3
Percent of searches completed with 0 results 40.5%
Percent of searches entered that are long 1.5%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 701,863 19.4%
PRESENT 2,587,112 71.6%
INIT or CLOSE 320,649 8.9%
OTHER 5,619 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 157000 15.9% 49,547 31.6% 6 73.6 449.9
CORPORATE AUTHOR 5,631 0.6% 2,554 45.4% 8 691.3 6591.4
EXACT CORP. AUT. 1,087 0.1% 253 23.3% 20 749.1 4448.9
TITLE WORD 271483 27.4% 102970 37.9% 3 56.2 484.6
EXACT TITLE 65,803 6.6% 33,092 50.3% 2 35.0 399.6
SUBJECT 161231 16.3% 85,890 53.3% 26 426.3 3090.0
EXACT SUBJECT 15,097 1.5% 3,328 22.0% 14 213.5 869.2
UNIFORM TITLE 587 0.1% 145 24.7% 3 363.6 2245.9
SERIES 4,111 0.4% 1,206 29.3% 10 125.4 528.9
DATE 11,076 1.1% 3,565 32.2% 11 129.4 2354.8
ADDED SINCE 1,630 0.2% 1,386 85.0% 2 20.8 73.7
LANGUAGE 39,803 4.0% 16,457 41.3% 33 425.4 3561.2
LCCN 6,863 0.7% 1,922 28.0% 1 1.5 5.3
ISBN 56,667 5.7% 28,573 50.4% 1 1.9 31.5
ISSN 1,270 0.1% 1,179 92.8% 5 55.4 167.0
DLA ID 754 0.1% 4 0.5% 1 1.0 0.3
MUSIC PUBLISHER 368 0.0% 88 23.9% 3 12.9 67.3
GOV'T DOC NUM 164 0.0% 54 32.9% 1 21.9 206.8
REPORT NUM 72 0.0% 45 62.5% 1 5.6 20.7
STOCK NUM 21 0.0% 0 0.0% 1 215.5 312.1
GPO ITEM NUM 36 0.0% 32 88.9% 3,709 5099.0 6124.8
FORM 15,523 1.6% 5,457 35.2% 9 154.7 1090.6
MUSIC KEY 20 0.0% 4 20.0% 64 487.7 1121.8
GEO CLASS 3 0.0% 0 0.0% 2 25.7 41.0
THEMATIC NUMBER 142 0.0% 120 84.5% 11 483.0 1887.0
SCALE 49 0.0% 17 34.7% 6 159.6 535.9
AT 111506 11.3% 44,295 39.7% 10 169.1 848.2
Other indexes 61,582 6.2% 24,058 39.1% 6 287.5 1320.3
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 225,268 32.1% 94,745 42.1% 5 147.9 1523.8
Single 476,595 67.9% 189614 39.8% 5 161.5 1661.0
PRESENT commands, by type:
MARC 38.8%
OPAC 45.6%
SCTmm/dd srv.cat MELSRV CATALOG DATABASES Z39.50 SERVER STATISTICS (weekly)