MELVYL CATALOG DATABASE TELNET STATISTICS
Time period: 07/01/00 through 07/31/00
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 3,957 10,062 14,019
Davis 7,730 1,476 9,206
Irvine 3,598 0 3,598
Los Angeles 999 3,492 4,491
Riverside 2,164 601 2,765
San Diego 2,150 1,055 3,205
San Francisco 1,618 0 1,618
Santa Barbara 2,122 1,875 3,997
Santa Cruz 1,446 802 2,248
LBL 0 467 467
LLL 0 394 394
Other - UC 178 775 953
CSL 0 708 708
CSU n/a 471 471
Other-Non UC n/a 19,152 19,152
_______ ______ _____
25,962 41,330 67,292
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 1,208 3,764 38,544
2-4 a.m. 836 3,364 29,375
4-6 a.m. 730 3,022 25,218
6-8 a.m. 1,844 5,350 39,604
8-10 a.m. 8,012 26,999 208,725
10-12 a.m. 12,998 44,666 329,097
12-2 p.m. 12,292 40,667 319,600
2-4 p.m. 14,614 46,808 349,644
4-6 p.m. 8,680 29,012 228,104
6-8 p.m. 2,781 8,706 67,041
8-10 p.m. 1,801 4,534 37,734
10-12 p.m. 1,496 4,509 53,572
__________ __________ __________ _________________
Total: 67,292 221,401 1,726,258
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 11,178 30,027 41,205
Davis 27,080 4,977 32,057
Irvine 11,409 0 11,409
Los Angeles 2,162 9,264 11,426
Riverside 7,711 1,184 8,895
San Diego 8,383 1,858 10,241
San Francisco 2,835 0 2,835
Santa Barbara 7,427 4,306 11,733
Santa Cruz 7,143 2,097 9,240
LBL 0 837 837
LLL 0 964 964
Other - UC 123 3,014 3,137
CSL 0 1,882 1,882
CSU n/a 1,893 1,893
Other-Non UC n/a 73,647 73,647
_______ ______ _____
85,451 135,950 221,401
1.3 Records Displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 94,608 267,629 362,237
Davis 185,979 26,491 212,470
Irvine 82,221 0 82,221
Los Angeles 15,058 82,679 97,737
Riverside 54,111 10,399 64,510
San Diego 35,267 19,819 55,086
San Francisco 22,710 0 22,710
Santa Barbara 61,833 35,393 97,226
Santa Cruz 31,718 18,488 50,206
LBL 0 8,139 8,139
LLL 0 8,865 8,865
Other - UC 1,528 23,095 24,623
CSL 0 8,725 8,725
CSU n/a 16,670 16,670
Other-Non UC n/a 614,833 614,833
_______ ______ _____
585,033 1,141,225 1,726,258
1.4 Response time
__________________
Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.8
Standard deviation in seconds 5.7
Display response time from receipt of command at
DLA until transmission of a complete screen:
Average in seconds 0.3
Standard deviation in seconds 1.6
2.0 COMMAND mode statistics:
____________________________
Longest session recorded (minutes:seconds) 1037
Average number of searches completed per session 3.2
Retrievals per search - median 2.0
Retrievals per search - average 95.7
Retrievals per search - standard deviation 3042.0
Percent of searches completed with 0 results 27.0%
Percent of searches entered that are long 3.9%
Percent of long searches completed
(includes partial results) 58.6%
Commands entered, by type, excluding errors:
Total Percentage
FIND 214,825 35.3%
DISPLAY (excluding automatic displays) 196,614 32.3%
ACFIND 42 0.0%
BROWSE 1,377 0.2%
SELECT 909 0.1%
HELP 5,209 0.9%
EXPLAIN 5,559 0.9%
SET/RESET 14,299 2.4%
SHOW 1,558 0.3%
AT 11,603 1.9%
ADD ON (AND, OR, AND NOT) 6,468 1.1%
LOGON or LOGOFF 111,079 18.3%
COMMENT 10 0.0%
SAVE 4,641 0.8%
USE 5,520 0.9%
OTHER 28,496 4.7%
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 33,457 15.0% 7,875 23.5% 11 84.5 367.5
AUTHOR 11,375 5.1% 2,698 23.7% 11 99.4 372.2
CORPORATE AUTH 2,326 1.0% 908 39.0% 20 680.6 5423.0
EXACT CA 97 0.0% 35 36.1% 74 433.9 1042.0
TITLE WORD 54,869 24.6% 17,102 31.2% 4 45.1 413.9
EXACT TITLE 32,145 14.4% 9,424 29.3% 2 22.4 148.4
TITLE -> TW 5,454 2.4% 1,408 25.8% 9 83.2 1738.5
TITLE -> XT 6,552 2.9% 3,208 49.0% 1 11.5 116.0
SUBJECT 10,861 4.9% 4,130 38.0% 53 901.7 10737.9
EXACT SUBJECT 525 0.2% 147 28.0% 54 507.7 1419.6
PERIODICAL 38,793 17.4% 7,638 19.7% 5 103.7 1605.8
EXACT PE 13,604 6.1% 1,818 13.4% 3 28.3 313.8
RPE 26 0.0% 7 26.9% 5 10.3 11.6
XRP 19 0.0% 2 10.5% 3 5.5 5.8
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 521 0.2% 124 23.8% 42 1591.1 8912.8
DATE 2,903 1.3% 770 26.5% 4 81.9 923.6
FORM 1,954 0.9% 477 24.4% 14 162.9 1504.9
NUMBER* 130 0.1% 46 35.4% 2 789.1 4955.8
MUSIC* 45 0.0% 15 33.3% 61 161.5 230.5
SERIES 4,667 2.1% 1,471 31.5% 3 61.0 322.8
UNIFORM TITLE 38 0.0% 16 42.1% 135 1324.4 1575.9
Other indexes 2,727 1.2% 1,215 44.6% 1 64.1 917.6
* 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 11,373 5.4% 3,288 28.9% 3 65.8 840.8
Single 199,784 94.6% 53,790 26.9% 5 114.9 2562.8
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 156 12.2% 44 28.2% 3 27.6 59.0
CORPORATE AUTH 10 0.8% 3 30.0% 44 84.6 132.0
EXACT CA 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 1,017 79.8% 214 21.0% 37 117.2 211.1
EXACT SUBJECT 75 5.9% 16 21.3% 27 71.7 106.7
UNIFORM TITLE 6 0.5% 4 66.7% 9 8.5 9.2
SERIES 11 0.9% 6 54.5% 2 2.4 1.7
By number of indexes:
Multiple 2 0.2% 0 0.0% 114 113.5 112.4
Single 1,319 99.8% 291 22.1% 28 101.4 193.9
DISPLAY commands, by type, excluding automatic displays:
REVIEW 10.4%
BRIEF 68.2%
LONG 10.6%
MARC 3.6%
FIELDS 1.9%
TAG 2.6%
PERIODICALS 0.0%
COMMENTS 0.0%
Other (includes BROWSE, ACFIND) 2.6%
3.0 Error, EXPLAIN and HELP statistics
__________________________________________________________
Percent of commands that contained errors 8.0%
Ten most frequent errors:
1. NS command - no next screen 30.3%
2. First word of command is invalid 26.5%
3. FIND command with invalid index name 11.8%
4. DISPLAY command contains invalid word 4.1%
5. Search term missing from search command 2.6%
6. KW search in database w/o KW index 2.3%
7. PS command - no previous screen 1.9%
8. DISPLAY command - no FIND results 1.6%
9. Valid command at an inappropriate time 1.6%
10. Command contains escape or arrow key 1.2%
11. All others 16.0%
Ten most frequent EXPLAIN requests:
1. GUIDE 25.0%
2. FIND 14.1%
3. INDEXES 7.5%
4. COMMAND WORDS 5.6%
5. Unrecognized term 4.6%
6. PASSWORDS 3.5%
7. DATABASES 3.0%
8. DISPLAY 2.4%
9. LOCATE (PE DB) 1.8%
10. SRLF 1.6%
11. All others 30.8%
Ten most frequent HELP situations:
1. Command mode selected from Welcome 22.4%
2. First word of command is invalid 13.6%
3. FIND command with invalid index name 11.7%
4. DISPLAY command - middle of >1 screen 4.2%
5. NS command - no next screen 2.9%
6. DISPLAY command-first of >1 screen 2.6%
7. F/BR with index invalid in current DB 2.6%
8. FIND command retrieves >1 book 2.6%
9. DISPLAY command - last of >1 screen 2.1%
10. DISPLAY command-complete in one screen 2.0%
11. All others 33.2%
Ten most frequent SHOW requests:
1. HISTORY 41.9%
2. SEARCH 10.3%
3. GLOSSARY 8.0%
4. SYSTEM NEWS 6.1%
5. SETTINGS 4.1%
6. MAIL STATUS 4.0%
7. DATABASE NEWS 2.3%
8. SYSTEM2 NEWS 2.1%
9. LAUC NEWS 1.1%
10. NEWS 1.1%
11. All others 19.0%
CATmm/dd cat MELVYL CATALOG DATABASE TELNET STATISTICS (weekly)