MELSRV CURRENT CONTENTS DATABASES Z39.50 SERVER STATISTICS
Time period: 02/01/99 through 02/28/99
1.0 SUMMARY STATISTICS
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Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 774 13,937
2-4 a.m. 882 15,124
4-6 a.m. 97 2,347
6-8 a.m. 464 9,557
8-10 a.m. 3,722 65,664
10-12 a.m. 8,030 153,463
12-2 p.m. 8,465 173,185
2-4 p.m. 11,180 212,248
4-6 p.m. 8,526 173,810
6-8 p.m. 3,841 85,755
8-10 p.m. 2,649 55,623
10-12 p.m. 1,738 38,210
__________ _____________ _________________
Total: 50,368 998,923
1.1 SEARCH commands
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Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 1,182
Davis 838
Irvine 578
Los Angeles 350
Riverside 41
San Diego 983
San Francisco 799
Santa Barbara 273
Santa Cruz 49
Lawrence Berkeley 149
Lawrence Livermore 112
Los Alamos 0
MELWEB 42,255
Other - UC 1,661
Other-Network UC 1,098
_____
50,368
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 13,454
Davis 9,854
Irvine 6,401
Los Angeles 6,225
Riverside 129
San Diego 13,992
San Francisco 3,117
Santa Barbara 1,950
Santa Cruz 410
Lawrence Berkeley 1,848
Lawrence Livermore 2,530
Los Alamos 0
MELWEB 913,902
Other - UC 10,895
Other-Network UC 14,216
_____
998,923
1.3 Response time
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Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.6
Standard deviation in seconds 7.0
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.4
Standard deviation in seconds 1.1
2.0 CURRENT CONTENTS Database Detailed Statistics
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Median session length (minutes:seconds) 22:53
Average session length (minutes:seconds) 23:42
Longest session recorded (minutes:seconds) 183:33
Average number of searches completed per session 0.0
Retrievals per search - median 5.0
Retrievals per search - average 748.9
Retrievals per search - standard deviation 8614.4
Percent of searches completed with 0 results 31.0%
Percent of searches entered that are long 0.0%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 50,368 15.8%
PRESENT 256,372 80.2%
INIT or CLOSE 12,809 4.0%
OTHER 141 0.0%
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 20,657 29.0% 5,538 26.8% 17 245.9 2297.1
TITLE WORD 27,587 38.8% 9,248 33.5% 14 750.0 5547.1
EXACT TITLE 679 1.0% 447 65.8% 1 186.4 827.0
JOURNAL 6,394 9.0% 3,329 52.1% 18 4933.4 30990.7
EXACT JOURNAL 2,119 3.0% 646 30.5% 815 4191.0 8582.6
DATE 2,183 3.1% 564 25.8% 7 184.7 1439.6
ADDED SINCE 1,233 1.7% 999 81.0% 1 44.6 392.3
SUBFILE 555 0.8% 261 47.0% 24 181.8 528.3
LANGUAGE 1,644 2.3% 547 33.3% 28 1335.0 16111.0
SUBJECT CATEGORY 1,151 1.6% 552 48.0% 16 215.6 1219.1
PUB TYPE 912 1.3% 295 32.3% 19 316.7 2941.9
ISN 1 0.0% 1 100% 0 0.0 0.0
ARTICLE 0 0.0% 0 0.0% 0 0.0 0.0
AT 5,992 8.4% 2,005 33.5% 24 889.2 6671.4
Other indexes 11 0.0% 11 100% 0 0.0 0.0
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 15,776 31.3% 6,642 42.1% 9 646.6 7373.9
Single 34,592 68.7% 8,968 25.9% 26 1241.7 11220.6
PRESENT commands, by type:
MARC 57.1%
OPAC 27.5%