2015-05-09
Additional charts
Host zm08.stanford.edu: Total CPU
avg(user) = 2.80 avg(sys) = 0.40 avg(idle) = 94.98 avg(iowait) = 1.78 avg(nice) = 0.00 avg(irq) = 0.00 avg(softirq) = 0.02
Host zm08.stanford.edu: Individual CPU user time
avg(cpu0) = 9.69 avg(cpu1) = 8.69 avg(cpu2) = 3.29 avg(cpu3) = 2.53 avg(cpu4) = 2.09 avg(cpu5) = 2.71 avg(cpu6) = 1.32 avg(cpu7) = 0.88 avg(cpu8) = 0.77 avg(cpu9) = 0.66 avg(cpu10) = 0.65 avg(cpu11) = 0.58 avg(cpu12) = 3.86 avg(cpu13) = 2.57 avg(cpu14) = 3.90 avg(cpu15) = 3.42 avg(cpu16) = 6.99 avg(cpu17) = 7.58 avg(cpu18) = 1.99 avg(cpu19) = 0.82 avg(cpu20) = 0.60 avg(cpu21) = 0.57 avg(cpu22) = 0.45 avg(cpu23) = 0.45
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) = 0.99 avg(cpu1) = 0.89 avg(cpu2) = 0.53 avg(cpu3) = 0.48 avg(cpu4) = 0.36 avg(cpu5) = 0.45 avg(cpu6) = 0.26 avg(cpu7) = 0.19 avg(cpu8) = 0.18 avg(cpu9) = 0.15 avg(cpu10) = 0.14 avg(cpu11) = 0.13 avg(cpu12) = 0.55 avg(cpu13) = 0.43 avg(cpu14) = 0.71 avg(cpu15) = 0.71 avg(cpu16) = 0.50 avg(cpu17) = 0.91 avg(cpu18) = 0.32 avg(cpu19) = 0.19 avg(cpu20) = 0.16 avg(cpu21) = 0.15 avg(cpu22) = 0.11 avg(cpu23) = 0.13
Host zm08.stanford.edu: Individual CPU idle time
avg(cpu0) = 72.73 avg(cpu1) = 74.52 avg(cpu2) = 95.42 avg(cpu3) = 96.21 avg(cpu4) = 97.20 avg(cpu5) = 96.30 avg(cpu6) = 98.27 avg(cpu7) = 98.78 avg(cpu8) = 98.98 avg(cpu9) = 99.07 avg(cpu10) = 99.15 avg(cpu11) = 99.24 avg(cpu12) = 92.04 avg(cpu13) = 93.49 avg(cpu14) = 95.14 avg(cpu15) = 95.69 avg(cpu16) = 92.30 avg(cpu17) = 91.24 avg(cpu18) = 97.55 avg(cpu19) = 98.89 avg(cpu20) = 99.20 avg(cpu21) = 99.25 avg(cpu22) = 99.41 avg(cpu23) = 99.40
Host zm08.stanford.edu: Individual CPU iowait time
avg(cpu0) = 16.42 avg(cpu1) = 15.76 avg(cpu2) = 0.69 avg(cpu3) = 0.71 avg(cpu4) = 0.30 avg(cpu5) = 0.48 avg(cpu6) = 0.13 avg(cpu7) = 0.13 avg(cpu8) = 0.06 avg(cpu9) = 0.11 avg(cpu10) = 0.04 avg(cpu11) = 0.03 avg(cpu12) = 3.49 avg(cpu13) = 3.49 avg(cpu14) = 0.19 avg(cpu15) = 0.13 avg(cpu16) = 0.15 avg(cpu17) = 0.15 avg(cpu18) = 0.10 avg(cpu19) = 0.09 avg(cpu20) = 0.02 avg(cpu21) = 0.02 avg(cpu22) = 0.01 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) = 0.16 avg(cpu1) = 0.13 avg(cpu2) = 0.05 avg(cpu3) = 0.05 avg(cpu4) = 0.03 avg(cpu5) = 0.04 avg(cpu6) = 0.01 avg(cpu7) = 0.01 avg(cpu8) = 0.01 avg(cpu9) = 0.00 avg(cpu10) = 0.00 avg(cpu11) = 0.00 avg(cpu12) = 0.05 avg(cpu13) = 0.01 avg(cpu14) = 0.04 avg(cpu15) = 0.03 avg(cpu16) = 0.05 avg(cpu17) = 0.10 avg(cpu18) = 0.02 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) = 1.93 avg(mysql) = 0.39 avg(stats) = 0.00
Host zm08.stanford.edu: Process Total Memory
avg(mailbox) = 21357.76 avg(mysql) = 18178.20 avg(stats) = 0.00
Host zm08.stanford.edu: Process Resident Memory
avg(mailbox) = 8937.86 avg(mysql) = 17890.19 avg(stats) = 0.00
Host zm08.stanford.edu: Virtual Memory
avg(swapped) = 15.79 avg(free) = 1979.29 avg(active) = 38284.26 avg(inactive) = 22311.74 avg(page cache) = 29749.35
Host zm08.stanford.edu: Context Switches
avg(context switches) = 5315.99
Host zm08.stanford.edu: Run/Blocked Process Queue Size, Load Average
avg(processes waiting for run time) = 1.21 avg(processes waiting for io time) = 0.64 avg(load average (1 min)) = 1.48
Host zm08.stanford.edu: Disk Utilization (Top 10 avg)
avg(sdf) = 11.90 avg(dm-0) = 2.55 avg(sdg) = 8.14 avg(dm-1) = 10.13 avg(sdl) = 11.88 avg(sdh) = 8.07 avg(dm-4) = 19.71 avg(dm-3) = 10.72 avg(sdm) = 8.14 avg(sdn) = 8.06
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) = 434.08 avg(sdf write) = 485.86
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) = 23.45 avg(sdk write) = 33.00
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) = 0.39 avg(sdj write) = 50.11
Host zm08.stanford.edu: Disk Throughput: /dev/dm-0
avg(dm-0 read) = 744.06 avg(dm-0 write) = 698.04
Host zm08.stanford.edu: Disk Throughput: /dev/sdg
avg(sdg read) = 512.08 avg(sdg write) = 76.88
Host zm08.stanford.edu: Disk Throughput: /dev/dm-1
avg(dm-1 read) = 1023.80 avg(dm-1 write) = 153.23
Host zm08.stanford.edu: Disk Throughput: /dev/dm-2
avg(dm-2 read) = 0.39 avg(dm-2 write) = 101.10
Host zm08.stanford.edu: Disk Throughput: /dev/sdl
avg(sdl read) = 434.25 avg(sdl write) = 485.38
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) = 372.24 avg(sdi write) = 347.37
Host zm08.stanford.edu: Disk Throughput: /dev/sdh
avg(sdh read) = 761.12 avg(sdh write) = 0.27
Host zm08.stanford.edu: Disk Throughput: /dev/dm-4
avg(dm-4 read) = 867.94 avg(dm-4 write) = 971.24
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) = 1522.60 avg(dm-3 write) = 0.60
Host zm08.stanford.edu: Disk Throughput: /dev/sdm
avg(sdm read) = 512.11 avg(sdm write) = 76.35
Host zm08.stanford.edu: Disk Throughput: /dev/sdp
avg(sdp read) = 0.39 avg(sdp write) = 50.99
Host zm08.stanford.edu: Disk Throughput: /dev/sdn
avg(sdn read) = 761.87 avg(sdn write) = 0.34
Host zm08.stanford.edu: Disk Throughput: /dev/sdu
avg(sdu read) = 0.19 avg(sdu write) = 0.00
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) = 372.21 avg(sdo write) = 350.66
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) = 27.75 avg(sdf write) = 20.66
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) = 0.96 avg(sdk write) = 1.58
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) = 0.10 avg(sdj write) = 0.42
Host zm08.stanford.edu: Disk IOPs: /dev/dm-0
avg(dm-0 read) = 12.69 avg(dm-0 write) = 21.43
Host zm08.stanford.edu: Disk IOPs: /dev/sdg
avg(sdg read) = 32.33 avg(sdg write) = 7.26
Host zm08.stanford.edu: Disk IOPs: /dev/dm-1
avg(dm-1 read) = 64.55 avg(dm-1 write) = 14.52
Host zm08.stanford.edu: Disk IOPs: /dev/dm-2
avg(dm-2 read) = 0.10 avg(dm-2 write) = 0.84
Host zm08.stanford.edu: Disk IOPs: /dev/sdl
avg(sdl read) = 27.74 avg(sdl write) = 20.66
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) = 6.39 avg(sdi write) = 10.71
Host zm08.stanford.edu: Disk IOPs: /dev/sdh
avg(sdh read) = 15.82 avg(sdh write) = 0.03
Host zm08.stanford.edu: Disk IOPs: /dev/dm-4
avg(dm-4 read) = 55.39 avg(dm-4 write) = 41.31
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) = 31.53 avg(dm-3 write) = 0.06
Host zm08.stanford.edu: Disk IOPs: /dev/sdm
avg(sdm read) = 32.32 avg(sdm write) = 7.26
Host zm08.stanford.edu: Disk IOPs: /dev/sdp
avg(sdp read) = 0.10 avg(sdp write) = 0.42
Host zm08.stanford.edu: Disk IOPs: /dev/sdn
avg(sdn read) = 15.82 avg(sdn write) = 0.03
Host zm08.stanford.edu: Disk IOPs: /dev/sdu
avg(sdu read) = 0.05 avg(sdu write) = 0.00
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) = 6.39 avg(sdo write) = 10.71
Host zm08.stanford.edu: Disk Usage
avg(/opt/zimbra/redo-mysql) = 46.19 avg(/usr/vice/cache) = 13.24 avg(/opt/zimbra/store) = 87.00 avg(/opt/zimbra) = 71.12 avg(/opt/zimbra/hsm1) = 92.00 avg(/) = 8.01 avg(/opt/zimbra/redolog) = 17.01
Host zm08.stanford.edu: Open file descriptor count
avg(total system file descriptors open) = 6617.81 avg(mailboxd file descriptors open) = 3247.25
Host zm08.stanford.edu: Process CPU Time (Top 10 avg)
avg(updatedb) = 37.37 avg(java) = 2039.80 avg(gzip) = 2757.00 avg(mysqld) = 289.89 avg(perl) = 21.46 avg(mysqldump) = 149.53 avg(zmmailboxd) = 1388.63 avg(zmstat-allprocs) = 11.63 avg(horsewatcher-fe) = 23.33 avg(zmcompresslogs) = 1353.00
Host zm08.stanford.edu: SOAP: Invocation Count: Summary (Top 10 max)
max(MsgActionRequest.move) = 78.00 max(SearchRequest) = 127.00 max(MsgActionRequest.delete) = 649.00 max(NoOpRequest) = 127.00 max(MsgActionRequest.trash) = 55.00 max(WaitSetRequest) = 73.00 max(GetMsgRequest) = 39.00 max(GetFolderRequest) = 194.00 max(SyncRequest) = 100.00 max(GetEffectiveFolderPermsRequest) = 34.00
Host zm08.stanford.edu: SOAP: Average Call Duration: Summary (Top 10 avg)
avg(SendMsgRequest) = 435.95 avg(DeleteAccountRequest) = 13880.75 avg(BackupQueryRequest) = 473.40 avg(GetAggregateQuotaUsageOnServerRequest) = 984.00 avg(BrowseRequest) = 242.00 avg(WaitSetRequest) = 252.22 avg(SendInviteReplyRequest) = 194.00 avg(AutoCompleteRequest) = 181.90 avg(FolderActionRequest.empty) = 321.57 avg(GetQuotaUsageRequest) = 1188.00
Host zm08.stanford.edu: MySQL: InnoDB Buffer Pool Pages
avg(pages read) = 342580611.69 avg(pages written) = 119146045.45
Host zm08.stanford.edu: MySQL: InnoDB Buffer Pool Hit Rate
avg(buffer pool hit rate) = 999.20
Host zm08.stanford.edu: MySQL: Database Connections In Use
avg(connections in use) = 0.28
Host zm08.stanford.edu: MySQL: Tables Open/Opened
avg(open_tables) = 1190.33 avg(opened_tables (cumulative)) = 335380.28
Host zm08.stanford.edu: MySQL: Total Slow Queries Count
avg(slow queries (cumulative)) = 456262.91
Host zm08.stanford.edu: Mailboxd: Connection Pool Get Latency
avg(mysql) = 0.17 avg(ldap) = 0.01
Host zm08.stanford.edu: Mailboxd: Lucene IO
avg(Index writes) = 26.88 avg(Index reads) = 65.49
Host zm08.stanford.edu: Mailboxd: LMTP Delivery Throughput
avg(received) = 43.06 avg(delivered) = 45.00
Host zm08.stanford.edu: Mailboxd: LMTP Delivery Rate
avg(received msgs) = 0.38 avg(delivered msgs) = 0.44 avg(received x rcpts) = 0.45
Host zm08.stanford.edu: Mailboxd: Mailbox Add Rate (Delivery Rate)
avg(mailbox add rate) = 0.58
Host zm08.stanford.edu: Mailboxd: Mailbox Add Latency (Delivery Speed)
avg(mailbox add latency) = 51.75
Host zm08.stanford.edu: Mailboxd: Request Rate by Client Protocol
avg(SOAP) = 4.44 avg(IMAP) = 44.08 avg(POP) = 2.02
Host zm08.stanford.edu: Mailboxd: Response Time by Client Protocol
avg(SOAP) = 352.19 avg(IMAP) = 17.30 avg(POP) = 138.38
Host zm08.stanford.edu: Mailboxd: Active Connections by Client Protocol
avg(IMAP) = 99.77 avg(IMAP SSL) = 449.41 avg(POP) = 0.05 avg(POP SSL) = 1.02 avg(SOAP sessions) = 150.38
Host zm08.stanford.edu: Mailboxd: Mailbox Get Count
avg(mailbox get count) = 2431.47
Host zm08.stanford.edu: Mailboxd: Mailbox Get Latency
avg(mailbox get latency) = 0.00
Host zm08.stanford.edu: Mailboxd: Mailbox Cache Hit Rate
avg(mailbox cache hit rate) = 99.98
Host zm08.stanford.edu: Mailboxd: Mailbox Item/Blob Cache Hit Rate
avg(msg blob cache) = 43.74 avg(item metadata cache) = 55.63
Host zm08.stanford.edu: Mailboxd: Minor Garbage Collection Time
avg(minor GC time) = 0.24
Host zm08.stanford.edu: Mailboxd: Major Garbage Collection Time
avg(major GC time) = 0.01
Host zm08.stanford.edu: Mailboxd: Minor Garbage Collection Count
avg(minor GC count) = 5.35
Host zm08.stanford.edu: Mailboxd: Major Garbage Collection Count
avg(major GC count) = 0.01
Host zm08.stanford.edu: Mailboxd: JVM Heap Used
avg(total) = 4909.33 avg(PS Old Gen) = 0.00 avg(CMS Old Gen) = 4009.90 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) = 806.70 avg(Par Survivor Space) = 92.74 avg(Eden Space) = 0.00 avg(Survivor Space) = 0.00
Host zm08.stanford.edu: Mailboxd: JVM Heap Free
avg(total free) = 2917.98 avg(PS Old Gen free) = 0.00 avg(CMS Old Gen free) = 2011.10 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) = 798.93 avg(Par Survivor Space free) = 107.95 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) = 144.36 avg(Code Cache) = 35.07 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) = 102.56 avg(Code Cache free) = 11.49 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) = 0.05 avg(user time) = 0.05 avg(system time) = 0.00
Host zm08.stanford.edu: convertd: Resident Memory
avg(convertd rss) = 156.95
Host zm08.stanford.edu: convertd: Processes and Threads
avg(processes) = 5.73 avg(threads) = 5.73
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