MELSRV CATALOG DATABASES Z39.50 SERVER STATISTICS
Time period: 05/01/99 through 05/31/99
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 20,544 252,914
2-4 a.m. 10,589 142,243
4-6 a.m. 10,656 106,112
6-8 a.m. 16,492 215,506
8-10 a.m. 34,506 608,000
10-12 a.m. 59,963 1,402,302
12-2 p.m. 63,358 1,612,100
2-4 p.m. 68,503 1,700,881
4-6 p.m. 52,316 1,344,131
6-8 p.m. 38,403 839,899
8-10 p.m. 31,180 644,710
10-12 p.m. 24,272 445,852
__________ _____________ _________________
Total: 430,782 9,314,650
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 505
Davis 490
Irvine 1,801
Los Angeles 245
Riverside 24
San Diego 243
San Francisco 243
Santa Barbara 107
Santa Cruz 76
Lawrence Berkeley 160
Lawrence Livermore 30
Los Alamos 0
MELWEB 298,144
Other - UC 12,874
Other-Network UC 115,840
_____
430,782
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 5,822
Davis 4,580
Irvine 6,897
Los Angeles 2,664
Riverside 210
San Diego 3,681
San Francisco 1,038
Santa Barbara 536
Santa Cruz 678
Lawrence Berkeley 1,828
Lawrence Livermore 183
Los Alamos 0
MELWEB 8,382,484
Other - UC 185,817
Other-Network UC 718,232
_____
9,314,650
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.8
Standard deviation in seconds 9.6
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.8
Standard deviation in seconds 3.6
2.0 CATALOG Database Detailed Statistics
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Median session length (minutes:seconds) 21:10
Average session length (minutes:seconds) 18:27
Longest session recorded (minutes:seconds) 266:19
Average number of searches completed per session 0.0
Retrievals per search - median 1.0
Retrievals per search - average 106.6
Retrievals per search - standard deviation 1679.1
Percent of searches completed with 0 results 41.6%
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 430,777 18.9%
PRESENT 1,714,443 75.0%
INIT or CLOSE 136,004 6.0%
OTHER 3,769 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 103781 16.2% 35,339 34.1% 7 79.7 466.0
CORPORATE AUTHOR 4,026 0.6% 2,059 51.1% 10 392.7 2586.5
EXACT CORP. AUT. 770 0.1% 245 31.8% 22 804.4 4150.6
TITLE WORD 145967 22.9% 59,374 40.7% 4 61.0 365.4
EXACT TITLE 49,368 7.7% 24,571 49.8% 2 33.7 240.5
SUBJECT 118449 18.5% 60,687 51.2% 30 475.2 4156.3
EXACT SUBJECT 14,599 2.3% 3,805 26.1% 15 267.4 1232.8
UNIFORM TITLE 477 0.1% 115 24.1% 3 266.7 1494.8
SERIES 2,287 0.4% 644 28.2% 13 156.2 669.6
DATE 8,392 1.3% 2,960 35.3% 14 221.8 2966.4
ADDED SINCE 793 0.1% 685 86.4% 2 613.9 3848.5
LANGUAGE 37,334 5.8% 16,149 43.3% 37 476.4 2752.0
LCCN 2,534 0.4% 961 37.9% 1 1.2 0.6
ISBN 22,082 3.5% 12,009 54.4% 1 1.1 1.7
ISSN 393 0.1% 358 91.1% 13 55.5 101.6
DLA ID 3 0.0% 2 66.7% 1 1.0 0.0
MUSIC PUBLISHER 111 0.0% 84 75.7% 23 311.7 791.2
GOV'T DOC NUM 171 0.0% 84 49.1% 1 4.6 29.1
REPORT NUM 62 0.0% 47 75.8% 1 6.4 20.9
STOCK NUM 15 0.0% 0 0.0% 1 91.7 166.6
GPO ITEM NUM 29 0.0% 25 86.2% 716 2004.5 3126.0
FORM 11,574 1.8% 4,548 39.3% 11 195.0 1041.9
MUSIC KEY 1 0.0% 1 100% 0 0.0 0.0
GEO CLASS 2 0.0% 0 0.0% 36 35.5 2.1
THEMATIC NUMBER 160 0.0% 134 83.7% 4 13.9 19.5
SCALE 2 0.0% 2 100% 0 0.0 0.0
AT 96,323 15.1% 41,387 43.0% 12 212.9 1038.8
Other indexes 18,962 3.0% 6,743 35.6% 7 210.7 1621.6
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 153,357 35.6% 68,064 44.4% 7 217.7 1281.7
Single 277,420 64.4% 111289 40.1% 6 164.8 2538.8
PRESENT commands, by type:
MARC 39.2%
OPAC 44.0%