MELVYL CATALOG DATABASE TELNET STATISTICS
Time period: 01/19/02 through 01/25/02
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 563 1,771 2,334
Davis 1,336 145 1,481
Irvine 361 0 361
Los Angeles 9 389 398
Riverside 314 75 389
San Diego 337 158 495
San Francisco 125 0 125
Santa Barbara 251 86 337
Santa Cruz 147 152 299
LBL 0 65 65
LLL 0 50 50
Other - UC 26 160 186
CSL 0 126 126
CSU n/a 91 91
Other-Non-UC n/a 4,690 4,690
_______ ______ _____
3,469 7,958 11,427
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 303 642 5,863
2-4 a.m. 268 602 9,311
4-6 a.m. 229 533 5,442
6-8 a.m. 444 981 11,087
8-10 a.m. 1,340 4,464 36,081
10-12 a.m. 2,097 7,671 54,786
12-2 p.m. 1,999 7,023 54,184
2-4 p.m. 2,209 7,461 51,565
4-6 p.m. 1,320 4,667 35,626
6-8 p.m. 529 1,475 10,780
8-10 p.m. 350 1,070 9,299
10-12 p.m. 339 734 5,654
__________ __________ __________ _________________
Total: 11,427 37,323 289,678
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 1,246 5,729 6,975
Davis 4,684 1,288 5,972
Irvine 2,408 0 2,408
Los Angeles 21 759 780
Riverside 1,440 222 1,662
San Diego 793 296 1,089
San Francisco 298 0 298
Santa Barbara 1,294 216 1,510
Santa Cruz 822 542 1,364
LBL 0 78 78
LLL 0 173 173
Other - UC 29 755 784
CSL 0 102 102
CSU n/a 372 372
Other-Non-UC n/a 13,756 13,756
_______ ______ _____
13,035 24,288 37,323
1.3 Records Displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 9,048 44,954 54,002
Davis 32,339 10,565 42,904
Irvine 14,777 0 14,777
Los Angeles 137 5,792 5,929
Riverside 11,718 1,195 12,913
San Diego 4,649 2,516 7,165
San Francisco 2,329 0 2,329
Santa Barbara 10,595 1,630 12,225
Santa Cruz 3,886 4,331 8,217
LBL 0 724 724
LLL 0 1,909 1,909
Other - UC 212 4,992 5,204
CSL 0 745 745
CSU n/a 3,392 3,392
Other-Non-UC n/a 117,243 117,243
_______ ______ _____
89,690 199,988 289,678
1.4 Response time
__________________
Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.4
Standard deviation in seconds 1.7
Display response time from receipt of command at
DLA until transmission of a complete screen:
Average in seconds 0.2
Standard deviation in seconds 1.3
2.0 COMMAND mode statistics:
____________________________
Median session length (minutes:seconds) 10:10
Average session length (minutes:seconds) 15:01
Longest session recorded (minutes:seconds) 895:34
Average number of searches completed per session 3.2
Retrievals per search - median 2.0
Retrievals per search - average 82.5
Retrievals per search - standard deviation 1989.9
Percent of searches completed with 0 results 26.5%
Percent of searches entered that are long 3.7%
Percent of long searches completed
(includes partial results) 62.2%
Commands entered, by type, excluding errors:
Total Percentage
FIND 36,050 34.7%
DISPLAY (excluding automatic displays) 34,564 33.3%
ACFIND 2 0.0%
BROWSE 148 0.1%
SELECT 95 0.1%
HELP 683 0.7%
EXPLAIN 740 0.7%
SET/RESET 2,134 2.1%
SHOW 205 0.2%
AT 2,172 2.1%
ADD ON (AND, OR, AND NOT) 1,268 1.2%
LOGON or LOGOFF 19,794 19.1%
COMMENT 1 0.0%
SAVE 535 0.5%
USE 639 0.6%
OTHER 4,825 4.6%
FINDs completed: RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By index:
PERSONAL AUTH 5,622 14.9% 1,274 22.7% 12 94.4 402.2
AUTHOR 1,441 3.8% 343 23.8% 13 110.2 512.2
CORPORATE AUTH 468 1.2% 189 40.4% 12 1034.1 9375.5
EXACT CA 7 0.0% 5 71.4% 5 4.5 3.5
TITLE WORD 8,639 22.9% 2,800 32.4% 4 77.0 2332.6
EXACT TITLE 5,162 13.7% 1,526 29.6% 2 28.2 182.1
TITLE -> TW 976 2.6% 245 25.1% 9 54.7 177.2
TITLE -> XT 1,052 2.8% 452 43.0% 2 9.5 52.6
SUBJECT 1,504 4.0% 478 31.8% 37 756.6 9640.0
EXACT SUBJECT 90 0.2% 22 24.4% 35 732.7 2599.3
PERIODICAL 6,759 17.9% 1,361 20.1% 5 92.7 1097.9
EXACT PE 2,949 7.8% 371 12.6% 2 102.6 2009.9
RPE 1 0.0% 0 0.0% 15 15.0 0.0
XRP 3 0.0% 0 0.0% 1 1.7 1.2
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 36 0.1% 3 8.3% 128 615.0 1155.3
DATE 409 1.1% 82 20.0% 6 44.8 200.4
FORM 610 1.6% 120 19.7% 15 230.9 2476.5
NUMBER* 23 0.1% 11 47.8% 9 5512.3 9954.1
MUSIC* 7 0.0% 2 28.6% 50 908.0 1965.6
SERIES 988 2.6% 291 29.5% 4 64.2 238.5
UNIFORM TITLE 11 0.0% 3 27.3% 6 34.3 75.4
Other indexes 1,029 2.7% 443 43.1% 1 2.1 7.9
* Number indexes include REPORT NUMBER STOCK NUMBER,
GOVERNMENT DOCUMENTS, and GPO ITEM NUMBER;
Music indexes include MUSICAL KEY, MUSIC PUBLISHER, and THEMATIC
By number of indexes:
Multiple 2,076 5.8% 500 24.1% 4 178.9 4357.9
Single 33,455 94.2% 8,980 26.8% 4 110.0 2171.6
BROWSEs completed: RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. BROs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By index:
PERSONAL AUTH 10 7.9% 0 0.0% 6 6.3 6.0
CORPORATE AUTH 1 0.8% 0 0.0% 1 1.0 0.0
EXACT CA 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 100 79.4% 18 18.0% 18 123.9 221.4
EXACT SUBJECT 13 10.3% 3 23.1% 32 98.1 131.6
UNIFORM TITLE 0 0.0% 0 0.0% 0 0.0 0.0
SERIES 2 1.6% 0 0.0% 49 49.0 62.2
By number of indexes:
Multiple 0 0.0% 0 0.0% 0 0.0 0.0
Single 139 100% 23 16.5% 13 100.8 195.7
DISPLAY commands, by type, excluding automatic displays:
REVIEW 11.9%
BRIEF 63.9%
LONG 10.0%
MARC 5.6%
FIELDS 3.1%
TAG 2.8%
PERIODICALS 0.0%
COMMENTS 0.0%
Other (includes BROWSE, ACFIND) 2.8%
3.0 Error, EXPLAIN and HELP statistics
__________________________________________________________
Percent of commands that contained errors 6.8%
Ten most frequent errors:
1. NS command - no next screen 32.2%
2. First word of command is invalid 26.2%
3. FIND command with invalid index name 11.7%
4. DISPLAY command contains invalid word 4.1%
5. Search term missing from search command 2.7%
6. PS command - no previous screen 2.0%
7. DISPLAY command - no FIND results 1.8%
8. Valid command at an inappropriate time 1.8%
9. KW search in database w/o KW index 1.5%
10. Index invalid in current database 1.2%
11. All others 14.9%
Ten most frequent EXPLAIN requests:
1. GUIDE 25.1%
2. FIND 10.7%
3. COMMAND WORDS 6.5%
4. Unrecognized term 6.2%
5. INDEXES 5.9%
6. PASSWORDS 5.9%
7. G961 4.6%
8. DATABASES 2.4%
9. CATALOG 2.2%
10. DISPLAY 2.0%
11. All others 28.4%
Ten most frequent HELP situations:
1. Command mode selected from Welcome 26.3%
2. First word of command is invalid 12.6%
3. FIND command with invalid index name 11.4%
4. DISPLAY command-first of >1 screen 4.4%
5. DISPLAY command - middle of >1 screen 3.8%
6. DISPLAY command-complete in one screen 2.8%
7. NS command - no next screen 1.8%
8. 3 HELP commands issued from same code 1.8%
9. F/BR with index invalid in current DB 1.8%
10. FIND command retrieves >1 book 1.7%
11. All others 31.6%
Ten most frequent SHOW requests:
1. HISTORY 55.2%
2. DATABASE NEWS 6.7%
3. GLOSSARY 5.2%
4. SEARCH 4.6%
5. TIME 3.6%
6. SETTINGS 3.6%
7. MAIL STATUS 3.1%
8. TERMINAL 2.1%
9. TIMEOUT SETTING 1.5%
10. PE LOADING STATISTICS 1.5%
11. All others 12.9%
CATmm/dd cat MELVYL CATALOG DATABASE TELNET STATISTICS (weekly)