MELVYL CATALOG DATABASE TELNET STATISTICS
Time period: 08/04/01 through 08/10/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 583 2,071 2,654
Davis 1,422 203 1,625
Irvine 607 0 607
Los Angeles 5 398 403
Riverside 382 75 457
San Diego 367 124 491
San Francisco 230 0 230
Santa Barbara 195 127 322
Santa Cruz 250 180 430
LBL 0 95 95
LLL 0 44 44
Other - UC 35 195 230
CSL 0 134 134
CSU n/a 84 84
Other-Non-UC n/a 3,918 3,918
_______ ______ _____
4,076 7,648 11,724
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 272 989 8,951
2-4 a.m. 239 731 9,810
4-6 a.m. 216 722 6,373
6-8 a.m. 449 1,321 55,479
8-10 a.m. 1,415 4,756 51,666
10-12 a.m. 2,186 7,276 60,048
12-2 p.m. 2,123 8,263 111,545
2-4 p.m. 2,395 8,692 89,199
4-6 p.m. 1,334 4,680 70,201
6-8 p.m. 478 1,670 40,811
8-10 p.m. 334 1,085 2,106
10-12 p.m. 283 960 6,957
__________ __________ __________ _________________
Total: 11,724 41,145 513,146
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 1,532 6,893 8,425
Davis 4,896 791 5,687
Irvine 2,335 0 2,335
Los Angeles 3 1,131 1,134
Riverside 1,505 146 1,651
San Diego 2,149 263 2,412
San Francisco 372 0 372
Santa Barbara 791 339 1,130
Santa Cruz 2,480 471 2,951
LBL 0 124 124
LLL 0 173 173
Other - UC 65 477 542
CSL 0 156 156
CSU n/a 207 207
Other-Non-UC n/a 13,846 13,846
_______ ______ _____
16,128 25,017 41,145
1.3 Records Displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 14,238 50,566 64,804
Davis 27,038 2,697 29,735
Irvine 17,696 0 17,696
Los Angeles 741 11,785 12,526
Riverside 8,410 1,803 10,213
San Diego 6,820 2,139 8,959
San Francisco 2,467 0 2,467
Santa Barbara 5,012 2,416 7,428
Santa Cruz 5,350 3,537 8,887
LBL 0 903 903
LLL 0 2,570 2,570
Other - UC 300 3,798 4,098
CSL 0 1,355 1,355
CSU n/a 1,707 1,707
Other-Non-UC n/a 339,798 339,798
_______ ______ _____
88,072 425,074 513,146
1.4 Response time
__________________
Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.5
Standard deviation in seconds 2.1
Display response time from receipt of command at
DLA until transmission of a complete screen:
Average in seconds 0.3
Standard deviation in seconds 13.1
2.0 COMMAND mode statistics:
____________________________
Median session length (minutes:seconds) 10:45
Average session length (minutes:seconds) 14:43
Longest session recorded (minutes:seconds) 1039
Average number of searches completed per session 3.5
Retrievals per search - median 2.0
Retrievals per search - average 57.1
Retrievals per search - standard deviation 1420.2
Percent of searches completed with 0 results 26.6%
Percent of searches entered that are long 4.1%
Percent of long searches completed
(includes partial results) 64.8%
Commands entered, by type, excluding errors:
Total Percentage
FIND 39,430 37.2%
DISPLAY (excluding automatic displays) 33,575 31.6%
ACFIND 5 0.0%
BROWSE 303 0.3%
SELECT 127 0.1%
HELP 597 0.6%
EXPLAIN 680 0.6%
SET/RESET 3,163 3.0%
SHOW 243 0.2%
AT 1,968 1.9%
ADD ON (AND, OR, AND NOT) 1,704 1.6%
LOGON or LOGOFF 18,612 17.5%
COMMENT 0 0.0%
SAVE 592 0.6%
USE 779 0.7%
OTHER 4,304 4.1%
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 6,700 16.1% 1,665 24.8% 9 81.4 353.4
AUTHOR 1,320 3.2% 320 24.2% 12 104.5 374.8
CORPORATE AUTH 396 1.0% 151 38.1% 14 631.5 3392.3
EXACT CA 16 0.0% 8 50.0% 16 915.1 2497.9
TITLE WORD 10,206 24.6% 3,157 30.9% 3 40.4 428.9
EXACT TITLE 7,873 19.0% 2,087 26.5% 2 25.8 230.3
TITLE -> TW 886 2.1% 240 27.1% 9 56.5 114.0
TITLE -> XT 1,286 3.1% 565 43.9% 1 6.7 40.7
SUBJECT 1,423 3.4% 481 33.8% 40 669.8 8744.5
EXACT SUBJECT 91 0.2% 22 24.2% 47 390.9 875.5
PERIODICAL 6,189 14.9% 1,222 19.7% 5 79.0 954.7
EXACT PE 2,392 5.8% 453 18.9% 3 16.6 82.2
RPE 1 0.0% 0 0.0% 12 12.0 0.0
XRP 2 0.0% 0 0.0% 8 8.0 9.9
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 61 0.1% 14 22.9% 24 161.0 298.2
DATE 604 1.5% 126 20.9% 4 119.5 1181.3
FORM 406 1.0% 90 22.2% 8 108.4 338.2
NUMBER* 56 0.1% 18 32.1% 3 134.6 468.4
MUSIC* 14 0.0% 3 21.4% 1,046 788.7 557.6
SERIES 948 2.3% 344 36.3% 2 106.7 858.3
UNIFORM TITLE 4 0.0% 3 75.0% 33 33.0 0.0
Other indexes 650 1.6% 284 43.7% 1 5.0 24.4
* 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 2,613 6.7% 759 29.0% 3 57.9 629.1
Single 36,216 93.3% 9,718 26.8% 4 81.0 1746.2
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 30 10.8% 4 13.3% 3 29.5 98.0
CORPORATE AUTH 1 0.4% 0 0.0% 5 5.0 0.0
EXACT CA 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 205 73.5% 31 15.1% 162 6352.9 17495.4
EXACT SUBJECT 28 10.0% 10 35.7% 34 534.9 1270.9
UNIFORM TITLE 1 0.4% 0 0.0% 18,231 18231.0 0.0
SERIES 14 5.0% 0 0.0% 63,827 55517.8 42530.1
By number of indexes:
Multiple 0 0.0% 0 0.0% 0 0.0 0.0
Single 287 100% 47 16.4% 66 7964.2 21626.7
DISPLAY commands, by type, excluding automatic displays:
REVIEW 10.3%
BRIEF 68.1%
LONG 10.0%
MARC 4.0%
FIELDS 2.1%
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 7.0%
Ten most frequent errors:
1. NS command - no next screen 32.4%
2. First word of command is invalid 25.5%
3. FIND command with invalid index name 10.7%
4. DISPLAY command contains invalid word 4.1%
5. Max. # of ports to a Z39 db are in use 2.5%
6. Search term missing from search command 2.3%
7. PS command - no previous screen 2.0%
8. KW search in database w/o KW index 1.9%
9. Valid command at an inappropriate time 1.6%
10. DISPLAY command - no FIND results 1.6%
11. All others 15.5%
Ten most frequent EXPLAIN requests:
1. GUIDE 22.9%
2. FIND 11.0%
3. COMMAND WORDS 5.9%
4. PASSWORDS 5.7%
5. Unrecognized term 5.6%
6. INDEXES 4.0%
7. MAIL 2.8%
8. UG01 2.5%
9. ADD-ON SEARCH 1.9%
10. AT 1.9%
11. All others 35.7%
Ten most frequent HELP situations:
1. Command mode selected from Welcome 26.6%
2. First word of command is invalid 12.3%
3. FIND command with invalid index name 10.2%
4. DISPLAY command - middle of >1 screen 3.8%
5. FIND command retrieves >1 book 3.4%
6. NS command - no next screen 2.0%
7. DISPLAY command - last of >1 screen 2.0%
8. TW search with zero results 2.0%
9. KW search in database w/o KW index 2.0%
10. DISPLAY command-complete in one screen 1.7%
11. All others 34.0%
Ten most frequent SHOW requests:
1. HISTORY 35.4%
2. MAIL STATUS 10.3%
3. GLOSSARY 7.4%
4. SEARCH 6.6%
5. Z39.50 NEWS 2.9%
6. DATABASE NEWS 2.9%
7. SETTINGS 2.1%
8. UCSF PASSWORDS 1.6%
9. MAIL SETTINGS 1.2%
10. DATABASES 1.2%
11. All others 28.4%
CATmm/dd cat MELVYL CATALOG DATABASE TELNET STATISTICS (weekly)