MELSRV CURRENT CONTENTS DATABASES Z39.50 SERVER STATISTICS
Time period: 06/01/99 through 06/30/99
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 627 12,380
2-4 a.m. 2,023 16,154
4-6 a.m. 213 3,914
6-8 a.m. 626 15,023
8-10 a.m. 3,849 76,930
10-12 a.m. 7,888 180,148
12-2 p.m. 7,725 174,402
2-4 p.m. 9,881 217,010
4-6 p.m. 7,483 157,840
6-8 p.m. 3,160 71,689
8-10 p.m. 1,907 38,835
10-12 p.m. 1,381 33,213
__________ _____________ _________________
Total: 46,763 997,538
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 773
Davis 773
Irvine 742
Los Angeles 566
Riverside 125
San Diego 1,448
San Francisco 389
Santa Barbara 138
Santa Cruz 341
Lawrence Berkeley 100
Lawrence Livermore 74
Los Alamos 2
MELWEB 39,089
Other - UC 1,411
Other-Network UC 792
_____
46,763
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 11,124
Davis 8,607
Irvine 2,818
Los Angeles 9,567
Riverside 1,922
San Diego 4,617
San Francisco 3,412
Santa Barbara 2,325
Santa Cruz 872
Lawrence Berkeley 1,924
Lawrence Livermore 1,384
Los Alamos 25
MELWEB 917,418
Other - UC 21,062
Other-Network UC 10,461
_____
997,538
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 6.8
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.4
Standard deviation in seconds 0.9
2.0 CURRENT CONTENTS Database Detailed Statistics
_________________________________________
Median session length (minutes:seconds) 22:07
Average session length (minutes:seconds) 21:16
Longest session recorded (minutes:seconds) 240:05
Average number of searches completed per session 0.0
Retrievals per search - median 6.0
Retrievals per search - average 702.9
Retrievals per search - standard deviation 8380.0
Percent of searches completed with 0 results 28.6%
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 46,763 16.0%
PRESENT 230,964 79.0%
INIT or CLOSE 14,220 4.9%
OTHER 497 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 20,827 32.6% 5,053 24.3% 18 291.7 4472.1
TITLE WORD 23,944 37.4% 7,605 31.8% 14 711.2 7249.9
EXACT TITLE 536 0.8% 347 64.7% 1 36.0 279.2
JOURNAL 5,151 8.1% 2,459 47.7% 21 4841.6 28869.5
EXACT JOURNAL 2,211 3.5% 690 31.2% 535 3639.6 16370.4
DATE 2,292 3.6% 645 28.1% 10 134.6 1094.2
ADDED SINCE 1,641 2.6% 1,183 72.1% 2 11.7 23.4
SUBFILE 439 0.7% 197 44.9% 18 233.4 713.5
LANGUAGE 1,310 2.0% 433 33.1% 35 596.1 2696.3
SUBJECT CATEGORY 718 1.1% 351 48.9% 19 151.8 753.4
PUB TYPE 519 0.8% 134 25.8% 26 311.7 1591.6
ISN 1 0.0% 1 100% 0 0.0 0.0
ARTICLE 0 0.0% 0 0.0% 0 0.0 0.0
AT 4,344 6.8% 1,392 32.0% 26 1792.5 19022.5
Other indexes 18 0.0% 15 83.3% 150 125.7 42.1
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 13,468 28.8% 5,470 40.6% 9 930.6 14461.9
Single 33,295 71.2% 7,904 23.7% 27 1001.4 7943.2
PRESENT commands, by type:
MARC 55.8%
OPAC 27.3%