2015-11-19

Additional charts

Host zm08.stanford.edu: Total CPU

avg(user) = 1.46    avg(sys) = 0.23    avg(idle) = 96.84    avg(iowait) = 1.45    avg(nice) = 0.00    avg(irq) = 0.00    avg(softirq) = 0.00

Host zm08.stanford.edu: Individual CPU user time

avg(cpu0) = 8.85    avg(cpu1) = 8.55    avg(cpu2) = 1.11    avg(cpu3) = 1.07    avg(cpu4) = 0.73    avg(cpu5) = 0.68    avg(cpu6) = 0.36    avg(cpu7) = 0.44    avg(cpu8) = 0.27    avg(cpu9) = 0.25    avg(cpu10) = 0.22    avg(cpu11) = 0.21    avg(cpu12) = 1.68    avg(cpu13) = 1.48    avg(cpu14) = 2.52    avg(cpu15) = 2.53    avg(cpu16) = 1.09    avg(cpu17) = 1.10    avg(cpu18) = 0.43    avg(cpu19) = 0.42    avg(cpu20) = 0.27    avg(cpu21) = 0.32    avg(cpu22) = 0.19    avg(cpu23) = 0.30

Host zm08.stanford.edu: Individual CPU nice time

avg(cpu0) = 0.00    avg(cpu1) = 0.00    avg(cpu2) = 0.00    avg(cpu3) = 0.00    avg(cpu4) = 0.00    avg(cpu5) = 0.00    avg(cpu6) = 0.00    avg(cpu7) = 0.00    avg(cpu8) = 0.00    avg(cpu9) = 0.00    avg(cpu10) = 0.00    avg(cpu11) = 0.00    avg(cpu12) = 0.00    avg(cpu13) = 0.00    avg(cpu14) = 0.00    avg(cpu15) = 0.00    avg(cpu16) = 0.00    avg(cpu17) = 0.00    avg(cpu18) = 0.00    avg(cpu19) = 0.00    avg(cpu20) = 0.00    avg(cpu21) = 0.00    avg(cpu22) = 0.00    avg(cpu23) = 0.00

Host zm08.stanford.edu: Individual CPU sys time

avg(cpu0) = 0.58    avg(cpu1) = 0.60    avg(cpu2) = 0.21    avg(cpu3) = 0.25    avg(cpu4) = 0.17    avg(cpu5) = 0.15    avg(cpu6) = 0.10    avg(cpu7) = 0.12    avg(cpu8) = 0.07    avg(cpu9) = 0.08    avg(cpu10) = 0.07    avg(cpu11) = 0.07    avg(cpu12) = 0.25    avg(cpu13) = 0.24    avg(cpu14) = 0.77    avg(cpu15) = 0.71    avg(cpu16) = 0.29    avg(cpu17) = 0.25    avg(cpu18) = 0.11    avg(cpu19) = 0.10    avg(cpu20) = 0.08    avg(cpu21) = 0.11    avg(cpu22) = 0.07    avg(cpu23) = 0.09

Host zm08.stanford.edu: Individual CPU idle time

avg(cpu0) = 78.09    avg(cpu1) = 78.52    avg(cpu2) = 97.88    avg(cpu3) = 98.02    avg(cpu4) = 98.75    avg(cpu5) = 98.89    avg(cpu6) = 99.43    avg(cpu7) = 99.33    avg(cpu8) = 99.60    avg(cpu9) = 99.63    avg(cpu10) = 99.67    avg(cpu11) = 99.61    avg(cpu12) = 94.14    avg(cpu13) = 94.70    avg(cpu14) = 96.61    avg(cpu15) = 96.66    avg(cpu16) = 98.48    avg(cpu17) = 98.61    avg(cpu18) = 99.43    avg(cpu19) = 99.45    avg(cpu20) = 99.64    avg(cpu21) = 99.55    avg(cpu22) = 99.73    avg(cpu23) = 99.59

Host zm08.stanford.edu: Individual CPU iowait time

avg(cpu0) = 12.39    avg(cpu1) = 12.24    avg(cpu2) = 0.79    avg(cpu3) = 0.64    avg(cpu4) = 0.34    avg(cpu5) = 0.27    avg(cpu6) = 0.11    avg(cpu7) = 0.10    avg(cpu8) = 0.04    avg(cpu9) = 0.03    avg(cpu10) = 0.03    avg(cpu11) = 0.07    avg(cpu12) = 3.92    avg(cpu13) = 3.56    avg(cpu14) = 0.10    avg(cpu15) = 0.10    avg(cpu16) = 0.12    avg(cpu17) = 0.04    avg(cpu18) = 0.02    avg(cpu19) = 0.01    avg(cpu20) = 0.01    avg(cpu21) = 0.01    avg(cpu22) = 0.00    avg(cpu23) = 0.01

Host zm08.stanford.edu: Individual CPU irq time

avg(cpu0) = 0.00    avg(cpu1) = 0.00    avg(cpu2) = 0.00    avg(cpu3) = 0.00    avg(cpu4) = 0.00    avg(cpu5) = 0.00    avg(cpu6) = 0.00    avg(cpu7) = 0.00    avg(cpu8) = 0.00    avg(cpu9) = 0.00    avg(cpu10) = 0.00    avg(cpu11) = 0.00    avg(cpu12) = 0.00    avg(cpu13) = 0.00    avg(cpu14) = 0.00    avg(cpu15) = 0.00    avg(cpu16) = 0.00    avg(cpu17) = 0.00    avg(cpu18) = 0.00    avg(cpu19) = 0.00    avg(cpu20) = 0.00    avg(cpu21) = 0.00    avg(cpu22) = 0.00    avg(cpu23) = 0.00

Host zm08.stanford.edu: Individual CPU softirq time

avg(cpu0) = 0.08    avg(cpu1) = 0.08    avg(cpu2) = 0.00    avg(cpu3) = 0.00    avg(cpu4) = 0.00    avg(cpu5) = 0.00    avg(cpu6) = 0.00    avg(cpu7) = 0.00    avg(cpu8) = 0.00    avg(cpu9) = 0.00    avg(cpu10) = 0.00    avg(cpu11) = 0.00    avg(cpu12) = 0.00    avg(cpu13) = 0.00    avg(cpu14) = 0.00    avg(cpu15) = 0.00    avg(cpu16) = 0.02    avg(cpu17) = 0.00    avg(cpu18) = 0.00    avg(cpu19) = 0.00    avg(cpu20) = 0.00    avg(cpu21) = 0.00    avg(cpu22) = 0.00    avg(cpu23) = 0.00

Host zm08.stanford.edu: Process CPU

avg(mailbox) = 0.82    avg(mysql) = 0.03    avg(stats) = 0.00

Host zm08.stanford.edu: Process Total Memory

avg(mailbox) = 18722.20    avg(mysql) = 18189.00    avg(stats) = 0.00

Host zm08.stanford.edu: Process Resident Memory

avg(mailbox) = 3927.54    avg(mysql) = 17837.41    avg(stats) = 0.00

Host zm08.stanford.edu: Virtual Memory

avg(swapped) = 43.79    avg(free) = 930.77    avg(active) = 38071.47    avg(inactive) = 22342.31    avg(page cache) = 24389.87

Host zm08.stanford.edu: Context Switches

avg(context switches) = 1654.86

Host zm08.stanford.edu: Run/Blocked Process Queue Size, Load Average

avg(processes waiting for run time) = 0.90    avg(processes waiting for io time) = 0.57    avg(load average (1 min)) = 1.22

Host zm08.stanford.edu: Disk Utilization (Top 10 avg)

avg(sdf) = 6.81    avg(sdk) = 6.82    avg(dm-0) = 12.90    avg(sdg) = 7.36    avg(dm-1) = 0.48    avg(sdl) = 7.36    avg(sdh) = 9.95    avg(dm-4) = 12.42    avg(dm-3) = 8.12    avg(sdm) = 9.94

Host zm08.stanford.edu: Disk Throughput: /dev/sde

avg(sde read) = 0.19    avg(sde write) = 0.00

Host zm08.stanford.edu: Disk Throughput: /dev/sdf

avg(sdf read) = 243.15    avg(sdf write) = 22.85

Host zm08.stanford.edu: Disk Throughput: /dev/sda

avg(sda read) = 0.19    avg(sda write) = 0.00

Host zm08.stanford.edu: Disk Throughput: /dev/sdk

avg(sdk read) = 243.18    avg(sdk write) = 22.94

Host zm08.stanford.edu: Disk Throughput: /dev/sdt

avg(sdt read) = 0.19    avg(sdt write) = 0.00

Host zm08.stanford.edu: Disk Throughput: /dev/sdq

avg(sdq read) = 0.19    avg(sdq write) = 0.00

Host zm08.stanford.edu: Disk Throughput: /dev/sdj

avg(sdj read) = 0.20    avg(sdj write) = 2.94

Host zm08.stanford.edu: Disk Throughput: /dev/dm-0

avg(dm-0 read) = 485.94    avg(dm-0 write) = 45.79

Host zm08.stanford.edu: Disk Throughput: /dev/sdg

avg(sdg read) = 633.88    avg(sdg write) = 0.69

Host zm08.stanford.edu: Disk Throughput: /dev/dm-1

avg(dm-1 read) = 354.69    avg(dm-1 write) = 484.69

Host zm08.stanford.edu: Disk Throughput: /dev/dm-2

avg(dm-2 read) = 0.00    avg(dm-2 write) = 5.72

Host zm08.stanford.edu: Disk Throughput: /dev/sdl

avg(sdl read) = 633.86    avg(sdl write) = 0.68

Host zm08.stanford.edu: Disk Throughput: /dev/sdc

avg(sdc read) = 0.19    avg(sdc write) = 0.00

Host zm08.stanford.edu: Disk Throughput: /dev/sdr

avg(sdr read) = 0.19    avg(sdr write) = 0.00

Host zm08.stanford.edu: Disk Throughput: /dev/sds

avg(sds read) = 0.19    avg(sds write) = 0.00

Host zm08.stanford.edu: Disk Throughput: /dev/sdi

avg(sdi read) = 177.58    avg(sdi write) = 241.93

Host zm08.stanford.edu: Disk Throughput: /dev/sdh

avg(sdh read) = 1105.78    avg(sdh write) = 0.03

Host zm08.stanford.edu: Disk Throughput: /dev/dm-4

avg(dm-4 read) = 2212.10    avg(dm-4 write) = 0.06

Host zm08.stanford.edu: Disk Throughput: /dev/sdb

avg(sdb read) = 0.19    avg(sdb write) = 0.00

Host zm08.stanford.edu: Disk Throughput: /dev/dm-3

avg(dm-3 read) = 1267.35    avg(dm-3 write) = 1.37

Host zm08.stanford.edu: Disk Throughput: /dev/sdm

avg(sdm read) = 1106.71    avg(sdm write) = 0.03

Host zm08.stanford.edu: Disk Throughput: /dev/sdp

avg(sdp read) = 0.19    avg(sdp write) = 0.00

Host zm08.stanford.edu: Disk Throughput: /dev/sdn

avg(sdn read) = 177.51    avg(sdn write) = 242.77

Host zm08.stanford.edu: Disk Throughput: /dev/sdu

avg(sdu read) = 25.64    avg(sdu write) = 30.88

Host zm08.stanford.edu: Disk Throughput: /dev/sdd

avg(sdd read) = 0.19    avg(sdd write) = 0.00

Host zm08.stanford.edu: Disk Throughput: /dev/sdo

avg(sdo read) = 0.20    avg(sdo write) = 2.78

Host zm08.stanford.edu: Disk IOPs: /dev/sde

avg(sde read) = 0.05    avg(sde write) = 0.00

Host zm08.stanford.edu: Disk IOPs: /dev/sdf

avg(sdf read) = 15.47    avg(sdf write) = 2.25

Host zm08.stanford.edu: Disk IOPs: /dev/sda

avg(sda read) = 0.05    avg(sda write) = 0.00

Host zm08.stanford.edu: Disk IOPs: /dev/sdk

avg(sdk read) = 15.47    avg(sdk write) = 2.25

Host zm08.stanford.edu: Disk IOPs: /dev/sdt

avg(sdt read) = 0.05    avg(sdt write) = 0.00

Host zm08.stanford.edu: Disk IOPs: /dev/sdq

avg(sdq read) = 0.05    avg(sdq write) = 0.00

Host zm08.stanford.edu: Disk IOPs: /dev/sdj

avg(sdj read) = 0.05    avg(sdj write) = 0.12

Host zm08.stanford.edu: Disk IOPs: /dev/dm-0

avg(dm-0 read) = 30.85    avg(dm-0 write) = 4.50

Host zm08.stanford.edu: Disk IOPs: /dev/sdg

avg(sdg read) = 37.71    avg(sdg write) = 0.09

Host zm08.stanford.edu: Disk IOPs: /dev/dm-1

avg(dm-1 read) = 9.52    avg(dm-1 write) = 2.05

Host zm08.stanford.edu: Disk IOPs: /dev/dm-2

avg(dm-2 read) = 0.00    avg(dm-2 write) = 0.24

Host zm08.stanford.edu: Disk IOPs: /dev/sdl

avg(sdl read) = 37.71    avg(sdl write) = 0.09

Host zm08.stanford.edu: Disk IOPs: /dev/sdc

avg(sdc read) = 0.05    avg(sdc write) = 0.00

Host zm08.stanford.edu: Disk IOPs: /dev/sdr

avg(sdr read) = 0.05    avg(sdr write) = 0.00

Host zm08.stanford.edu: Disk IOPs: /dev/sds

avg(sds read) = 0.05    avg(sds write) = 0.00

Host zm08.stanford.edu: Disk IOPs: /dev/sdi

avg(sdi read) = 4.81    avg(sdi write) = 1.03

Host zm08.stanford.edu: Disk IOPs: /dev/sdh

avg(sdh read) = 23.48    avg(sdh write) = 0.01

Host zm08.stanford.edu: Disk IOPs: /dev/dm-4

avg(dm-4 read) = 46.86    avg(dm-4 write) = 0.01

Host zm08.stanford.edu: Disk IOPs: /dev/sdb

avg(sdb read) = 0.05    avg(sdb write) = 0.00

Host zm08.stanford.edu: Disk IOPs: /dev/dm-3

avg(dm-3 read) = 75.33    avg(dm-3 write) = 0.18

Host zm08.stanford.edu: Disk IOPs: /dev/sdm

avg(sdm read) = 23.48    avg(sdm write) = 0.01

Host zm08.stanford.edu: Disk IOPs: /dev/sdp

avg(sdp read) = 0.05    avg(sdp write) = 0.00

Host zm08.stanford.edu: Disk IOPs: /dev/sdn

avg(sdn read) = 4.81    avg(sdn write) = 1.03

Host zm08.stanford.edu: Disk IOPs: /dev/sdu

avg(sdu read) = 1.13    avg(sdu write) = 1.75

Host zm08.stanford.edu: Disk IOPs: /dev/sdd

avg(sdd read) = 0.05    avg(sdd write) = 0.00

Host zm08.stanford.edu: Disk IOPs: /dev/sdo

avg(sdo read) = 0.05    avg(sdo write) = 0.12

Host zm08.stanford.edu: Disk Usage

avg(/opt/zimbra/redo-mysql) = 1.00    avg(/usr/vice/cache) = 10.11    avg(/opt/zimbra/store) = 89.00    avg(/opt/zimbra) = 74.00    avg(/opt/zimbra/hsm1) = 95.00    avg(/) = 8.01    avg(/opt/zimbra/redolog) = 9.70

Host zm08.stanford.edu: Open file descriptor count

avg(total system file descriptors open) = 4726.07    avg(mailboxd file descriptors open) = 1363.30

Host zm08.stanford.edu: Process CPU Time (Top 10 avg)

avg(tripwire) = 1984.00    avg(updatedb) = 36.00    avg(java) = 1451.60    avg(rpm) = 11.40    avg(gzip) = 2860.46    avg(mysqld) = 27.22    avg(yum) = 354.00    avg(mysqldump) = 134.78    avg(zmmailboxd) = 602.05    avg(zmstat-allprocs) = 11.38

Host zm08.stanford.edu: SOAP: Invocation Count: Summary (Top 10 max)

max(ConvActionRequest.trash) = 7.00    max(GetFreeBusyRequest) = 27.00    max(SetMailboxMetadataRequest) = 8.00    max(ConvActionRequest.read) = 7.00    max(SearchConvRequest) = 16.00    max(SearchRequest) = 15.00    max(GetFolderRequest) = 9.00    max(GetShareInfoRequest) = 55.00    max(NoOpRequest) = 12.00    max(GetDomainInfoRequest) = 27.00

Host zm08.stanford.edu: SOAP: Average Call Duration: Summary (Top 10 avg)

avg(BackupQueryRequest) = 266.83    avg(GetAggregateQuotaUsageOnServerRequest) = 880.00    avg(GetFreeBusyRequest) = 159.19    avg(SnoozeCalendarItemAlarmRequest) = 161.00    avg(AutoCompleteRequest) = 586.50    avg(GetFolderRequest) = 64.48    avg(SendMsgRequest) = 741.17    avg(SearchCalendarResourcesRequest) = 226.00    avg(GetQuotaUsageRequest) = 1023.00    avg(ConvActionRequest.delete) = 321.00

Host zm08.stanford.edu: MySQL: InnoDB Buffer Pool Pages

avg(pages read) = 777235358.86    avg(pages written) = 187476924.24

Host zm08.stanford.edu: MySQL: InnoDB Buffer Pool Hit Rate

avg(buffer pool hit rate) = 988.55

Host zm08.stanford.edu: MySQL: Database Connections In Use

avg(connections in use) = 0.01

Host zm08.stanford.edu: MySQL: Tables Open/Opened

avg(open_tables) = 1161.91    avg(opened_tables (cumulative)) = 995556.86

Host zm08.stanford.edu: MySQL: Total Slow Queries Count

avg(slow queries (cumulative)) = 1191189.59

Host zm08.stanford.edu: Mailboxd: Connection Pool Get Latency

avg(mysql) = 0.31    avg(ldap) = 0.01

Host zm08.stanford.edu: Mailboxd: Lucene IO

avg(Index writes) = 0.27    avg(Index reads) = 0.47

Host zm08.stanford.edu: Mailboxd: LMTP Delivery Throughput

avg(received) = 0.36    avg(delivered) = 0.37

Host zm08.stanford.edu: Mailboxd: LMTP Delivery Rate

avg(received msgs) = 0.01    avg(delivered msgs) = 0.01    avg(received x rcpts) = 0.01

Host zm08.stanford.edu: Mailboxd: Mailbox Add Rate (Delivery Rate)

avg(mailbox add rate) = 0.00

Host zm08.stanford.edu: Mailboxd: Mailbox Add Latency (Delivery Speed)

avg(mailbox add latency) = 8.35

Host zm08.stanford.edu: Mailboxd: Request Rate by Client Protocol

avg(SOAP) = 0.08    avg(IMAP) = 0.09    avg(POP) = 0.01

Host zm08.stanford.edu: Mailboxd: Response Time by Client Protocol

avg(SOAP) = 7.71    avg(IMAP) = 0.68    avg(POP) = 6.19

Host zm08.stanford.edu: Mailboxd: Active Connections by Client Protocol

avg(IMAP) = 0.65    avg(IMAP SSL) = 0.85    avg(POP) = 0.00    avg(POP SSL) = 0.00    avg(SOAP sessions) = 1.96

Host zm08.stanford.edu: Mailboxd: Mailbox Get Count

avg(mailbox get count) = 13.52

Host zm08.stanford.edu: Mailboxd: Mailbox Get Latency

avg(mailbox get latency) = 0.14

Host zm08.stanford.edu: Mailboxd: Mailbox Cache Hit Rate

avg(mailbox cache hit rate) = 93.00

Host zm08.stanford.edu: Mailboxd: Mailbox Item/Blob Cache Hit Rate

avg(msg blob cache) = 3.31    avg(item metadata cache) = 30.51

Host zm08.stanford.edu: Mailboxd: Minor Garbage Collection Time

avg(minor GC time) = 0.01

Host zm08.stanford.edu: Mailboxd: Major Garbage Collection Time

avg(major GC time) = 0.00

Host zm08.stanford.edu: Mailboxd: Minor Garbage Collection Count

avg(minor GC count) = 0.03

Host zm08.stanford.edu: Mailboxd: Major Garbage Collection Count

avg(major GC count) = 0.00

Host zm08.stanford.edu: Mailboxd: JVM Heap Used

avg(total) = 2339.43    avg(PS Old Gen) = 0.00    avg(CMS Old Gen) = 1424.13    avg(Tenured Gen) = 0.00    avg(Train Gen) = 0.00    avg(PS Eden Space) = 0.00    avg(PS Survivor Space) = 0.00    avg(Par Eden Space) = 815.74    avg(Par Survivor Space) = 99.55    avg(Eden Space) = 0.00    avg(Survivor Space) = 0.00

Host zm08.stanford.edu: Mailboxd: JVM Heap Free

avg(total free) = 5487.89    avg(PS Old Gen free) = 0.00    avg(CMS Old Gen free) = 4596.87    avg(Tenured Gen free) = 0.00    avg(Train Gen free) = 0.00    avg(PS Eden Space free) = 0.00    avg(PS Survivor Space free) = 0.00    avg(Par Eden Space free) = 789.88    avg(Par Survivor Space free) = 101.13    avg(Eden Space free) = 0.00    avg(Survivor Space free) = 0.00

Host zm08.stanford.edu: Mailboxd: JVM Permanent Generation and Code Cache

avg(PS Perm Gen) = 0.00    avg(Perm Gen) = 0.00    avg(CMS Perm Gen) = 102.62    avg(Code Cache) = 22.88    avg(Perm Gen [shared-ro]) = 0.00    avg(Perm Gen [shared-rw]) = 0.00    avg(PS Perm Gen free) = 0.00    avg(Perm Gen free) = 0.00    avg(CMS Perm Gen free) = 93.38    avg(Code Cache free) = 0.28    avg(Perm Gen [shared-ro] free) = 0.00    avg(Perm Gen [shared-rw] free) = 0.00

Host zm08.stanford.edu: convertd: CPU time used

avg(total cputime) = 0.00    avg(user time) = 0.00    avg(system time) = 0.00

Host zm08.stanford.edu: convertd: Resident Memory

avg(convertd rss) = 88.10

Host zm08.stanford.edu: convertd: Processes and Threads

avg(processes) = 5.00    avg(threads) = 5.00

No data available for the following charts:

Host zm08.stanford.edu: Swap Activity Host zm08.stanford.edu: Disk Throughput: /dev/dm-7 Host zm08.stanford.edu: Disk Throughput: /dev/sdx Host zm08.stanford.edu: Disk Throughput: /dev/sdab Host zm08.stanford.edu: Disk Throughput: /dev/sdaa Host zm08.stanford.edu: Disk Throughput: /dev/sdad Host zm08.stanford.edu: Disk Throughput: /dev/sdag Host zm08.stanford.edu: Disk Throughput: /dev/sdaf Host zm08.stanford.edu: Disk Throughput: /dev/sdy Host zm08.stanford.edu: Disk Throughput: /dev/sdv Host zm08.stanford.edu: Disk Throughput: /dev/sdac Host zm08.stanford.edu: Disk Throughput: /dev/dm-5 Host zm08.stanford.edu: Disk Throughput: /dev/sdw Host zm08.stanford.edu: Disk Throughput: /dev/sdae Host zm08.stanford.edu: Disk Throughput: /dev/dm-6 Host zm08.stanford.edu: Disk Throughput: /dev/sdz Host zm08.stanford.edu: Disk IOPs: /dev/dm-7 Host zm08.stanford.edu: Disk IOPs: /dev/sdx Host zm08.stanford.edu: Disk IOPs: /dev/sdab Host zm08.stanford.edu: Disk IOPs: /dev/sdaa Host zm08.stanford.edu: Disk IOPs: /dev/sdad Host zm08.stanford.edu: Disk IOPs: /dev/sdag Host zm08.stanford.edu: Disk IOPs: /dev/sdaf Host zm08.stanford.edu: Disk IOPs: /dev/sdy Host zm08.stanford.edu: Disk IOPs: /dev/sdv Host zm08.stanford.edu: Disk IOPs: /dev/sdac Host zm08.stanford.edu: Disk IOPs: /dev/dm-5 Host zm08.stanford.edu: Disk IOPs: /dev/sdw Host zm08.stanford.edu: Disk IOPs: /dev/sdae Host zm08.stanford.edu: Disk IOPs: /dev/dm-6 Host zm08.stanford.edu: Disk IOPs: /dev/sdz Host zm08.stanford.edu: Mailboxd: Dirty Lucene Index Writers Host zm08.stanford.edu: Mailboxd: Lucene IndexWriterCache Hitrate Host zm08.stanford.edu: nginx: CPU time used Host zm08.stanford.edu: nginx: Resident Memory Host zm08.stanford.edu: nginx: Processes and Threads

Summary