MELSRV CURRENT CONTENTS DATABASES Z39.50 SERVER STATISTICS
Time period: 04/01/01 through 04/30/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 3,401 45,284
2-4 a.m. 1,398 27,651
4-6 a.m. 709 17,519
6-8 a.m. 2,124 30,958
8-10 a.m. 4,624 80,739
10-12 a.m. 10,561 186,360
12-2 p.m. 11,298 201,709
2-4 p.m. 13,343 228,244
4-6 p.m. 10,670 190,480
6-8 p.m. 5,095 77,450
8-10 p.m. 3,522 60,261
10-12 p.m. 2,478 44,313
__________ _____________ _________________
Total: 69,223 1,190,968
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 1,404
Davis 1,043
Irvine 527
Los Angeles 362
Riverside 112
San Diego 1,246
San Francisco 580
Santa Barbara 631
Santa Cruz 250
Lawrence Berkeley 196
Lawrence Livermore 245
Los Alamos 0
MELWEB 44,223
Searchlight 15,357
Other - UC 1,099
Other-Network UC 1,948
_____
69,223
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 21,779
Davis 16,960
Irvine 5,722
Los Angeles 6,874
Riverside 1,861
San Diego 20,550
San Francisco 6,019
Santa Barbara 9,265
Santa Cruz 2,697
Lawrence Berkeley 4,033
Lawrence Livermore 5,086
Los Alamos 0
MELWEB 955,172
Searchlight 71,627
Other - UC 19,808
Other-Network UC 43,515
_____
1,190,968
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.5
Standard deviation in seconds 5.9
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.3
Standard deviation in seconds 0.7
2.0 CURRENT CONTENTS Database Detailed Statistics
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Median session length (minutes:seconds) 20:22
Average session length (minutes:seconds) 14:59
Longest session recorded (minutes:seconds) 179:46
Average number of searches completed per session 0.0
Retrievals per search - median 5.0
Retrievals per search - average 600.9
Retrievals per search - standard deviation 6516.6
Percent of searches completed with 0 results 26.8%
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 69,223 16.2%
PRESENT 327,113 76.5%
INIT or CLOSE 31,155 7.3%
OTHER 307 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 28,166 30.3% 6,004 21.3% 14 254.1 3870.0
TITLE WORD 38,822 41.7% 11,034 28.4% 12 667.1 6177.2
EXACT TITLE 909 1.0% 495 54.5% 1 66.2 577.3
JOURNAL 6,074 6.5% 2,607 42.9% 11 3354.5 22420.7
EXACT JOURNAL 2,747 3.0% 1,066 38.8% 572 4482.0 11670.6
DATE 3,261 3.5% 606 18.6% 7 333.4 9285.2
ADDED SINCE 4,851 5.2% 3,543 73.0% 3 42.9 1181.1
SUBFILE 580 0.6% 213 36.7% 15 211.3 1062.2
LANGUAGE 1,412 1.5% 295 20.9% 23 323.8 2280.3
SUBJECT CATEGORY 667 0.7% 237 35.5% 15 114.7 332.1
PUB TYPE 803 0.9% 168 20.9% 19 578.6 9306.3
ISN 2 0.0% 2 100% 0 0.0 0.0
ARTICLE 0 0.0% 0 0.0% 0 0.0 0.0
AT 4,649 5.0% 1,224 26.3% 25 1049.0 7325.9
Other indexes 103 0.1% 83 80.6% 31 655.4 1552.5
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 19,192 27.7% 7,357 38.3% 6 511.8 7845.2
Single 50,031 72.3% 11,168 22.3% 21 914.4 7525.1
PRESENT commands, by type:
MARC 63.2%
OPAC 23.2%
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