2016-01-03
Additional charts
Host zm08.stanford.edu: Total CPU
avg(user) = 1.06 avg(sys) = 0.15 avg(idle) = 96.93 avg(iowait) = 1.84 avg(nice) = 0.00 avg(irq) = 0.00 avg(softirq) = 0.00
Host zm08.stanford.edu: Individual CPU user time
avg(cpu0) = 5.30 avg(cpu1) = 5.55 avg(cpu2) = 0.65 avg(cpu3) = 0.85 avg(cpu4) = 0.41 avg(cpu5) = 0.46 avg(cpu6) = 0.26 avg(cpu7) = 0.31 avg(cpu8) = 0.19 avg(cpu9) = 0.19 avg(cpu10) = 0.14 avg(cpu11) = 0.16 avg(cpu12) = 1.02 avg(cpu13) = 1.20 avg(cpu14) = 2.51 avg(cpu15) = 2.70 avg(cpu16) = 0.90 avg(cpu17) = 1.06 avg(cpu18) = 0.33 avg(cpu19) = 0.35 avg(cpu20) = 0.19 avg(cpu21) = 0.29 avg(cpu22) = 0.13 avg(cpu23) = 0.23
Host zm08.stanford.edu: Individual CPU nice time
avg(cpu0) = 0.00 avg(cpu1) = 0.01 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) = 0.39 avg(cpu1) = 0.41 avg(cpu2) = 0.16 avg(cpu3) = 0.16 avg(cpu4) = 0.11 avg(cpu5) = 0.10 avg(cpu6) = 0.07 avg(cpu7) = 0.08 avg(cpu8) = 0.08 avg(cpu9) = 0.05 avg(cpu10) = 0.08 avg(cpu11) = 0.06 avg(cpu12) = 0.19 avg(cpu13) = 0.19 avg(cpu14) = 0.49 avg(cpu15) = 0.45 avg(cpu16) = 0.15 avg(cpu17) = 0.17 avg(cpu18) = 0.06 avg(cpu19) = 0.08 avg(cpu20) = 0.07 avg(cpu21) = 0.07 avg(cpu22) = 0.08 avg(cpu23) = 0.06
Host zm08.stanford.edu: Individual CPU idle time
avg(cpu0) = 80.78 avg(cpu1) = 71.56 avg(cpu2) = 98.70 avg(cpu3) = 98.47 avg(cpu4) = 99.26 avg(cpu5) = 99.18 avg(cpu6) = 99.58 avg(cpu7) = 99.40 avg(cpu8) = 99.65 avg(cpu9) = 99.70 avg(cpu10) = 99.74 avg(cpu11) = 99.74 avg(cpu12) = 96.73 avg(cpu13) = 95.61 avg(cpu14) = 96.80 avg(cpu15) = 96.57 avg(cpu16) = 98.81 avg(cpu17) = 98.57 avg(cpu18) = 99.51 avg(cpu19) = 99.42 avg(cpu20) = 99.62 avg(cpu21) = 99.52 avg(cpu22) = 99.76 avg(cpu23) = 99.51
Host zm08.stanford.edu: Individual CPU iowait time
avg(cpu0) = 13.48 avg(cpu1) = 22.43 avg(cpu2) = 0.48 avg(cpu3) = 0.50 avg(cpu4) = 0.22 avg(cpu5) = 0.25 avg(cpu6) = 0.07 avg(cpu7) = 0.20 avg(cpu8) = 0.06 avg(cpu9) = 0.04 avg(cpu10) = 0.03 avg(cpu11) = 0.04 avg(cpu12) = 2.06 avg(cpu13) = 2.99 avg(cpu14) = 0.20 avg(cpu15) = 0.28 avg(cpu16) = 0.13 avg(cpu17) = 0.20 avg(cpu18) = 0.09 avg(cpu19) = 0.13 avg(cpu20) = 0.11 avg(cpu21) = 0.11 avg(cpu22) = 0.02 avg(cpu23) = 0.19
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) = 0.04 avg(cpu1) = 0.03 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) = 0.01 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: Process CPU
avg(mailbox) = 0.41 avg(mysql) = 0.06 avg(stats) = 0.00
Host zm08.stanford.edu: Process Total Memory
avg(mailbox) = 19112.39 avg(mysql) = 18189.00 avg(stats) = 0.00
Host zm08.stanford.edu: Process Resident Memory
avg(mailbox) = 4042.13 avg(mysql) = 17845.21 avg(stats) = 0.00
Host zm08.stanford.edu: Virtual Memory
avg(swapped) = 43.55 avg(free) = 13105.42 avg(active) = 36083.27 avg(inactive) = 12106.32 avg(page cache) = 12013.93
Host zm08.stanford.edu: Context Switches
avg(context switches) = 1346.18
Host zm08.stanford.edu: Run/Blocked Process Queue Size, Load Average
avg(processes waiting for run time) = 0.73 avg(processes waiting for io time) = 0.66 avg(load average (1 min)) = 1.09
Host zm08.stanford.edu: Disk Utilization (Top 10 avg)
avg(sdf) = 10.41 avg(sdk) = 10.42 avg(dm-0) = 13.94 avg(sdg) = 3.77 avg(sdl) = 3.77 avg(sdh) = 5.46 avg(dm-4) = 6.94 avg(dm-3) = 4.26 avg(sdm) = 5.46 avg(sdu) = 14.38
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) = 348.20 avg(sdf write) = 21.94
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) = 348.20 avg(sdk write) = 22.20
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) = 2.51
Host zm08.stanford.edu: Disk Throughput: /dev/dm-0
avg(dm-0 read) = 696.00 avg(dm-0 write) = 44.14
Host zm08.stanford.edu: Disk Throughput: /dev/sdg
avg(sdg read) = 309.39 avg(sdg write) = 0.31
Host zm08.stanford.edu: Disk Throughput: /dev/dm-1
avg(dm-1 read) = 351.34 avg(dm-1 write) = 484.15
Host zm08.stanford.edu: Disk Throughput: /dev/dm-2
avg(dm-2 read) = 0.00 avg(dm-2 write) = 5.26
Host zm08.stanford.edu: Disk Throughput: /dev/sdl
avg(sdl read) = 309.02 avg(sdl write) = 0.32
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) = 175.90 avg(sdi write) = 241.04
Host zm08.stanford.edu: Disk Throughput: /dev/sdh
avg(sdh read) = 517.16 avg(sdh write) = 0.04
Host zm08.stanford.edu: Disk Throughput: /dev/dm-4
avg(dm-4 read) = 1034.08 avg(dm-4 write) = 0.07
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) = 618.01 avg(dm-3 write) = 0.63
Host zm08.stanford.edu: Disk Throughput: /dev/sdm
avg(sdm read) = 517.32 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) = 175.84 avg(sdn write) = 243.11
Host zm08.stanford.edu: Disk Throughput: /dev/sdu
avg(sdu read) = 32.22 avg(sdu write) = 36.81
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) = 2.75
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) = 22.14 avg(sdf write) = 1.97
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) = 22.14 avg(sdk write) = 1.97
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) = 0.10
Host zm08.stanford.edu: Disk IOPs: /dev/dm-0
avg(dm-0 read) = 44.18 avg(dm-0 write) = 3.94
Host zm08.stanford.edu: Disk IOPs: /dev/sdg
avg(sdg read) = 16.92 avg(sdg write) = 0.04
Host zm08.stanford.edu: Disk IOPs: /dev/dm-1
avg(dm-1 read) = 9.46 avg(dm-1 write) = 2.01
Host zm08.stanford.edu: Disk IOPs: /dev/dm-2
avg(dm-2 read) = 0.00 avg(dm-2 write) = 0.20
Host zm08.stanford.edu: Disk IOPs: /dev/sdl
avg(sdl read) = 16.92 avg(sdl write) = 0.04
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) = 4.78 avg(sdi write) = 1.00
Host zm08.stanford.edu: Disk IOPs: /dev/sdh
avg(sdh read) = 10.37 avg(sdh write) = 0.01
Host zm08.stanford.edu: Disk IOPs: /dev/dm-4
avg(dm-4 read) = 20.63 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) = 33.74 avg(dm-3 write) = 0.08
Host zm08.stanford.edu: Disk IOPs: /dev/sdm
avg(sdm read) = 10.37 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) = 4.78 avg(sdn write) = 1.00
Host zm08.stanford.edu: Disk IOPs: /dev/sdu
avg(sdu read) = 0.91 avg(sdu write) = 1.86
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) = 0.10
Host zm08.stanford.edu: Disk Usage
avg(/opt/zimbra/redo-mysql) = 1.00 avg(/usr/vice/cache) = 10.47 avg(/opt/zimbra/store) = 89.00 avg(/opt/zimbra) = 74.00 avg(/opt/zimbra/hsm1) = 95.00 avg(/) = 8.02 avg(/opt/zimbra/redolog) = 9.72
Host zm08.stanford.edu: Open file descriptor count
avg(total system file descriptors open) = 4732.52 avg(mailboxd file descriptors open) = 1325.63
Host zm08.stanford.edu: Process CPU Time (Top 10 avg)
avg(tripwire) = 14.54 avg(updatedb) = 27.77 avg(java) = 1029.68 avg(gzip) = 2835.32 avg(mysqld) = 50.80 avg(yum) = 469.00 avg(mysqldump) = 124.37 avg(zmmailboxd) = 312.81 avg(zmconfigd) = 7.08 avg(zmstat-allprocs) = 11.40
Host zm08.stanford.edu: SOAP: Invocation Count: Summary (Top 10 max)
max(BackupQueryRequest) = 4.00 max(GetMsgRequest) = 3.00 max(SearchRequest) = 2.00 max(GetAccountRequest) = 2.00 max(FlushCacheRequest) = 1.00 max(GetFreeBusyRequest) = 2.00 max(GetDistributionListRequest) = 1.00 max(AuthRequest) = 4.00 max(ModifyAccountRequest) = 2.00 max(GetDomainInfoRequest) = 4206.00
Host zm08.stanford.edu: SOAP: Average Call Duration: Summary (Top 10 avg)
avg(BackupQueryRequest) = 268.40 avg(GetAggregateQuotaUsageOnServerRequest) = 872.00 avg(GetMsgRequest) = 10.58 avg(SearchRequest) = 25.36 avg(GetQuotaUsageRequest) = 1025.00 avg(FlushCacheRequest) = 4.00 avg(GetFreeBusyRequest) = 219.78 avg(GetDistributionListRequest) = 1.88 avg(AuthRequest) = 101.25 avg(ModifyAccountRequest) = 6.00
Host zm08.stanford.edu: MySQL: InnoDB Buffer Pool Pages
avg(pages read) = 901806669.55 avg(pages written) = 189293268.18
Host zm08.stanford.edu: MySQL: InnoDB Buffer Pool Hit Rate
avg(buffer pool hit rate) = 983.36
Host zm08.stanford.edu: MySQL: Database Connections In Use
avg(connections in use) = 0.11
Host zm08.stanford.edu: MySQL: Tables Open/Opened
avg(open_tables) = 1158.38 avg(opened_tables (cumulative)) = 1206151.16
Host zm08.stanford.edu: MySQL: Total Slow Queries Count
avg(slow queries (cumulative)) = 1398158.48
Host zm08.stanford.edu: Mailboxd: Connection Pool Get Latency
avg(mysql) = 0.32 avg(ldap) = 0.01
Host zm08.stanford.edu: Mailboxd: Lucene IO
avg(Index writes) = 0.01 avg(Index reads) = 0.38
Host zm08.stanford.edu: Mailboxd: LMTP Delivery Throughput
avg(received) = 0.02 avg(delivered) = 0.02
Host zm08.stanford.edu: Mailboxd: LMTP Delivery Rate
avg(received msgs) = 0.00 avg(delivered msgs) = 0.00 avg(received x rcpts) = 0.00
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) = 1.94
Host zm08.stanford.edu: Mailboxd: Request Rate by Client Protocol
avg(SOAP) = 0.49 avg(IMAP) = 0.02 avg(POP) = 0.01
Host zm08.stanford.edu: Mailboxd: Response Time by Client Protocol
avg(SOAP) = 8.40 avg(IMAP) = 0.60 avg(POP) = 0.09
Host zm08.stanford.edu: Mailboxd: Active Connections by Client Protocol
avg(IMAP) = 0.81 avg(IMAP SSL) = 0.00 avg(POP) = 0.00 avg(POP SSL) = 0.01 avg(SOAP sessions) = 0.00
Host zm08.stanford.edu: Mailboxd: Mailbox Get Count
avg(mailbox get count) = 7.92
Host zm08.stanford.edu: Mailboxd: Mailbox Get Latency
avg(mailbox get latency) = 0.10
Host zm08.stanford.edu: Mailboxd: Mailbox Cache Hit Rate
avg(mailbox cache hit rate) = 94.07
Host zm08.stanford.edu: Mailboxd: Mailbox Item/Blob Cache Hit Rate
avg(msg blob cache) = 0.32 avg(item metadata cache) = 9.59
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) = 0.10
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) = 2432.51 avg(PS Old Gen) = 0.00 avg(CMS Old Gen) = 1576.44 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) = 804.47 avg(Par Survivor Space) = 51.61 avg(Eden Space) = 0.00 avg(Survivor Space) = 0.00
Host zm08.stanford.edu: Mailboxd: JVM Heap Free
avg(total free) = 5394.80 avg(PS Old Gen free) = 0.00 avg(CMS Old Gen free) = 4444.56 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) = 801.16 avg(Par Survivor Space free) = 149.08 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) = 93.41 avg(Code Cache) = 22.26 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) = 102.59 avg(Code Cache free) = 0.25 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) = 0.02 avg(user time) = 0.02 avg(system time) = 0.00
Host zm08.stanford.edu: convertd: Resident Memory
avg(convertd rss) = 153.15
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