Rate and give feedback:
Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document.
Note: Even the most advanced machine translation cannot match the quality of professional translators.
Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
memstat.sh
Function
The memstat.sh command is used to query the memory usage of all kernel modules to check whether memory leakage occurs, and query the page usage of a specified kernel module.
Format
memstat.sh -a
memstat.sh -c settraceentry [stacklayer]
memstat.sh -c setmemstatswitch [value]
memstat.sh -h
memstat.sh -c setmodulefilter [midName]
memstat.sh -c showmoduletrace
memstat.sh -c showstatinfo
memstat.sh -c showmemstatswitch
memstat.sh -c showtraceentry
memstat.sh -c showmodulefilter
Usage Guidelines
The "memstat.sh" command is used to query memory usage of all kernel modules to monitor memory leakage. It provides the following functions:
- Enable or disable the function of collecting memory statistics.
- Show the switch value of enabling or disabling memory statistics collection.
- Show buddy and vmalloc memory occupied by all kernel modules.
- Set the number of call stack layers to be reserved. When setting the number of call stack layers, disable the function of collecting memory statistics.
- Show the number of call stack layers.
- Set a filtering module only from kernel modules in the current system.
- Show the configured filtering module.
- Show information about pages and call stacks used by the filtering module.
Example
-
Enable or disable the function of collecting memory statistics.
Storage: minisystem> memstat.sh -c setmemstatswitch 1 DANGER: You are going to perform a danger command.The execution of this command may consume some system memory. Suggestion: Before you perform this operation, make sure that the operation will not affect working of system. Have you read danger alert message carefully?(y/n) y Enter "I have read and understand the consequences associated with performing this operation." to confirm running this command. I have read and understand the consequences associated with performing this operation. Succeeded in setting the switch value. The switch value is 1. Storage: minisystem>
-
Show help information.
Storage: minisystem> memstat.sh -h memstat.sh [-h] [-a] [-c command] : It's just the memstat modules's command about memory info. Enter memstat.sh -a to obtain more information. Storage: minisystem>
-
Show the operations that can be performed using "memstat.sh".
Storage: minisystem> memstat.sh -a memstat.sh -c setmemstatswitch [value] : set memstat's switch, [value] is [0|1],0:close,1:open. memstat.sh -c settraceentry [stacklayer] : set the depth of the stack.[stacklayer] is [1-8]. memstat.sh -c setmodulefilter [midName] : set module filter, only can set kernel's module. memstat.sh -c showmoduletrace : show used page information according to module_filter. memstat.sh -c showstatinfo : show all module's memory info allocated by buddy, vmalloc, slab. memstat.sh -c showmemstatswitch : show memstat's switch. memstat.sh -c showtraceentry : show memstat's trace entry. memstat.sh -c showmodulefilter : show filter module. Storage: minisystem>
-
Show the switch value of enabling or disabling memory statistics collection.
Storage: minisystem> memstat.sh -c showmemstatswitch 1 Storage: minisystem>
-
Show buddy and vmalloc memory occupied by all kernel modules.
Storage: minisystem> memstat.sh -c showstatinfo Note: The unit of memory is bytes. module buddy vmalloc core_size libfc 0 0 188416 iocount 0 0 86016 os_test 0 0 16384 tgtscsi 0 0 2060288 flashcache 0 0 872448 nls_cp932_utf8 0 0 40960 context 0 0 8495104 vhost_protocol 0 0 122880 i2c_core 0 0 40960 dbapp 0 0 380928 hioce 0 0 249856 cache_ctrl 0 0 196608 lfcoe 0 0 69632 common_event 0 0 77824 auto_tiering 0 0 831488 econf 0 0 32768 fujitsu_dx8000 0 0 16384 lockd 0 0 487424 xt_conntrack 0 0 16384 hioct_toetom 0 0 319488 os_feeddog 0 0 16384 ixgbe 0 0 286720 iw_cm 0 0 36864 ibm_ds8k 0 0 28672 overloadctrl 0 0 212992 grain 0 0 3203072 btree 0 0 561152 logzone_ctrl 0 0 94208 omlib 0 0 77824 sysctrl 0 0 9945088 fcdrv 0 0 708608 reloc 0 0 327680 os_rnvramdev 0 0 16384 alm_client 0 0 77824 lic_kernel 0 0 114688 cliadapter 0 0 20480 ibtgt 0 0 102400 ftds_adapt 0 0 90112 auto_tiering_shim 0 0 69632 huawei_all 0 0 73728 nls_cp932 0 0 98304 nls_cp950 0 0 118784 dlmadapter 0 0 163840 netapp_fas 0 0 36864 nls_cp936 0 0 139264 nls_euc_jp 0 0 16384 agetty_query 0 0 16384 scm_kernel 0 0 40960 quark 0 0 376832 nvram 0 0 61440 msg_client 0 0 106496 nls_cp949 0 0 163840 scsi_transport_fc 0 0 61440 iscsi_comm 0 0 32768 cab 0 0 684032 acc 0 0 118784 crct10dif_common 0 0 16384 dca 0 0 16384 quota 0 0 2256896 crct10dif_pclmul 0 0 16384 ccdb_app 0 0 45056 smb3_failover 0 0 495616 xnet_agent 0 0 139264 ibc 0 0 24576 dbmanage 0 0 192512 dlmplug_ol 0 0 32768 dal 0 0 741376 i40e 229376 0 352256 igb 0 0 208896 dlmplug_rl 0 0 339968 adm 0 0 507904 ipmi_msghandler 0 0 49152 nbc 0 0 36864 dif 0 0 106496 dell_compellent 0 0 16384 eam 0 0 3567616 dcl 0 0 507904 nls_euc_tw 0 0 319488 tms_ramsan 0 0 16384 ckg 0 0 6381568 rss_action 0 0 761856 space_flow_ctrl 0 0 196608 hp_eva5000 0 0 16384 mic 0 0 36864 hdm 0 0 651264 foe 0 0 94208 dmi 0 0 2359296 ccdb_rpm 0 0 81920 nas_notify 0 0 16384 llc 0 0 16384 nla 0 0 36864 xt_multiport 0 0 16384 pciecard 0 0 1224704 protobuf_k 0 0 77824 cfgframe 0 0 1273856 sdd 0 0 303104 bgr 0 0 299008 nal 0 0 32768 mml_server 0 0 319488 8021q 0 0 36864 iod 0 0 17678336 repio_util 0 0 188416 nas_mirror 0 0 331776 drvtoecore 0 0 139264 cmm 0 0 28168192 ldm 0 0 1302528 pal 0 0 8790016 cln 0 0 4382720 mpa 0 0 1421312 iscsi_prot 0 0 1822720 ral 0 0 462848 kboxdriver 0 0 24576 sal 0 0 10170368 itc 0 0 266240 drv_iosubsys_nvme 0 0 16384 epl 0 0 1417216 smb 0 0 4874240 drm 0 0 131072 rel 0 0 1208320 spa 0 0 18739200 bsp 0 0 561152 sem 0 0 106496 spc 0 0 11018240 hioc_genalloc 0 0 16384 dbkernel 0 0 978944 dif_ctrl 0 0 16384 eam_ctrl 0 0 36864 bdm_ctrl 0 0 36864 rim 0 0 270336 diagnose 0 0 237568 pciecore 0 0 1056768 comm_mem 0 0 61440 nas_lock 0 0 675840 sio 0 0 1220608 rsf 0 0 1531904 lmr 0 0 1449984 cpy 0 0 2162688 mrm 0 0 176128 uio 0 0 16384 unflowlevel_ioc 0 0 532480 iscsi_initiator 0 0 303104 kvm 0 0 561152 sata_mml 0 0 110592 nas_klog 0 2109440 131072 ata_piix 0 0 36864 mrp 0 0 20480 ccdb_nvram_adapter 0 0 180224 lun 0 0 2035712 comm_rpc 0 0 253952 cnet_msg 0 0 110592 iodetect 0 0 28672 cmm_dump 0 0 16384 dha_collector 0 0 229376 qos 0 0 6098944 ptp 0 0 20480 macrosan_ms3000 0 0 16384 nas_ctrl 0 0 24576 drvframe 0 0 454656 stp 0 0 16384 pagepool 0 0 253952 vos 0 190636032 7950336 xve_transaction 0 0 167936 rtt 0 0 118784 pps_core 0 0 20480 xnet_pal 0 0 24576 ib_mad 0 0 57344 rep_temp 0 0 57344 metadata_sync 0 0 1875968 scsi_tgt 0 0 20480 pool_pub 0 0 24576 jbd2 0 0 106496 lun_ctrl 0 0 1425408 iscsi_sw 0 0 45056 bsp_mce_print 0 0 16384 osp_proc 0 0 16384 nls_iso8859_1 0 0 16384 xnet_mgt 0 0 176128 xnet_udp 0 0 184320 qos_ctrl 0 0 81920 fcportft 0 0 16384 smartlog 0 0 32768 cluster_monitor 0 0 528384 xt_limit 0 0 16384 ccdb_client 0 0 831488 reg_feeddog 0 0 16384 aa_krn 0 0 61440 rss_ctrl 0 0 81920 libata 0 0 212992 ibm_ds 0 0 45056 vmmscomm 0 0 69632 rep_hc 0 0 6582272 falcon_ipstor 0 0 16384 hp_eva 0 0 40960 bdm_adapter 0 0 442368 smb2 0 0 10833920 rss_util 0 0 4657152 sd_mod 0 0 49152 ombase 0 0 24576 hp_msa 0 0 28672 pciehp 0 0 372736 emc_dmx3k 0 0 16384 crct10dif_generic 0 0 16384 smb_manager 0 0 2220032 string_module 0 0 798720 nf_defrag_ipv4 0 0 16384 sa_krn 0 0 40960 mcachelayer 0 0 679936 nf_defrag_ipv6 0 0 53248 satahp 0 0 45056 sysevent 0 0 212992 signo_catch 0 0 53248 nas_proto_vfs 0 0 1142784 rep_hv 0 0 4292608 ext4 0 0 577536 bsp_adapter 0 0 118784 dlmfwk 0 0 1634304 rep_rm 0 0 5144576 fdstat 0 0 20480 ostorvfs 0 3211264 937984 msg_adapter 0 0 24576 os_panic_handler 0 0 16384 e1000e 0 0 270336 mlx4_core 0 0 315392 perf_kernel 0 0 200704 ioctrl 0 0 106496 nvram_sysinfo 0 0 20480 stackcheckframes 0 0 16384 drvmml 0 0 1413120 fujitsu_e4000 0 0 16384 ctrl_public 0 0 16384 common_info 0 0 53248 ahci 0 0 57344 nas_netlink 0 0 61440 cluster_lib 0 0 614400 extent 0 0 1630208 volume 0 0 2797568 sunrpc 0 0 1052672 drvtom 0 0 229376 agetty_interface 0 0 16384 fdsa 0 0 421888 crc_t10dif 0 0 16384 rep_3dc 0 0 954368 ccdb_ctrl 0 0 16384 vstore 0 0 274432 auth_rpcgss 0 0 65536 ibm_flash 0 0 16384 upgrade_bootdisk 0 0 16384 guide_all 0 0 16384 kmma 0 0 90112 product_net 0 0 20480 productconf 0 0 196608 kvdb 0 0 667648 bnet 0 0 180224 garp 0 0 16384 nfsd 0 856064 7143424 tddp 0 0 1216512 pair 0 0 1327104 ib_compat 0 0 16384 mlx4_ib 0 0 192512 os_die_handler 0 0 16384 xve_logzone 0 0 14192640 ftds 0 0 1863680 snap 0 0 8568832 fcpy 0 0 458752 ip_tables 0 0 24576 kbox 0 5881856 266240 nas_sysctrl 0 16384 2068480 nvme 0 0 434176 pmgr 0 0 512000 flow 0 0 131072 iscsi_seg 0 0 73728 commu_api 0 0 20480 transaction_ctrl 0 0 16384 loop 0 0 28672 mtgt 0 0 1449984 omadapter 0 0 45056 tppi 0 0 233472 util 0 0 536576 comm_task 0 0 1445888 scheduler 0 0 73728 xnet_pcie 0 0 303104 ib_uverbs 0 0 73728 xnet_rdma 0 0 118784 hvs_ilock 0 0 176128 mbcache 0 0 16384 emc_vplex 0 0 16384 ib_addr 0 0 20480 iptable_filter 0 0 16384 ea 0 0 49152 scsi_ctrl 0 0 86016 algorithm 0 0 16384 xnet_core 0 0 4141056 log_cbb 0 0 24576 kvm_intel 0 0 172032 os_oom_handler 0 0 16384 bdm_lib 0 0 946176 drv_iosubsys_ini 0 0 53248 pool_ctrl 0 0 856064 raid0 0 0 20480 raid1 0 0 36864 ib_umad 0 0 24576 nas_acl 0 0 999424 unfcommon 0 0 1249280 ib_core 0 0 126976 rdma_cm 0 0 53248 rocache 0 0 204800 audit_client_kernel 0 0 40960 ua 0 0 49152 db_plat 0 0 512000 sd 0 0 1785856 nf_conntrack_ipv4 0 0 16384 cxgb4 12386304 0 581632 pcielib 0 0 61440 osax_util 0 0 69632 transaction2 0 0 626688 pcieaer 0 0 442368 lm 0 0 1015808 sg 0 0 40960 nf_conntrack_ipv6 0 0 20480 drv_iosubsys_tgt 0 0 16384 tg 0 0 258048 rep_arb 0 0 1150976 tcp_bbr 0 0 20480 xnet_util 0 0 450560 mp 0 0 720896 irqbypass 0 0 16384 dbuffer 0 0 348160 hds_ams 0 0 16384 crosssite 0 0 827392 rm 0 0 4206592 nas_mem 0 2097152 172032 bonding 0 0 147456 vols_util 0 0 708608 iw_hioc 0 0 188416 ibm_svc 0 0 32768 spaceub 0 0 344064 zlib_deflate 0 0 28672 emc_clariion 0 0 49152 antivirus 0 0 167936 ip6_tables 0 0 28672 ipmi_si 0 0 57344 bsp_mml 0 0 176128 fs_ctrl 0 0 1130496 ibm_xiv 0 0 16384 nfs_charset_convert 0 0 65536 acpi_cpufreq 0 0 20480 rep_svc 0 0 2199552 ib_srpt 0 0 122880 nas_pum 0 0 90112 cache 0 0 4874240 forward 0 0 57344 nf_conntrack 0 0 126976 hds_usp 0 0 24576 comm_redolog 0 0 172032 upgrade_kern 0 0 372736 sysalarm_agent_netlink_k 0 0 16384 mmt_krn 0 0 28672 ib_cm 0 0 45056 netmgmt 0 0 221184 ip6table_filter 0 0 16384 ipmi_devintf 0 0 20480 ib_sa 0 0 36864 Storage: minisystem> -
Set the number of call stack layers to be reserved. When setting the number of call stack layers, disable the function of collecting memory statistics.
Storage: minisystem> memstat.sh -c settraceentry 3 DANGER: You are going to perform a danger command. Memory consumption rises as the number of stack layers increases. Suggestion: Before you perform this operation, make sure that the operation will not affect working of system. Have you read danger alert message carefully?(y/n) y Enter "I have read and understand the consequences associated with performing this operation." to confirm running this command. I have read and understand the consequences associated with performing this operation. Succeeded in setting the number of call stack layers. The number of call stack layers is 3. Storage: minisystem>
-
Show the number of call stack layers.
Storage: minisystem> memstat.sh -c showtraceentry 3 Storage: minisystem>
-
Set a filtering module only from kernel modules in the current system.
Storage: minisystem> memstat.sh -c setmodulefilter ib_sa DANGER: You are going to perform a danger command. Only ib_sa is traced and the previously configured filter module will become invalid. Have you read danger alert message carefully?(y/n) y Are you sure you really want to perform the operation?(y/n) y Succeeded in setting the filtering module. The filtering module is ib_sa. Storage: minisystem>
-
Show the configured filtering module.
Storage: minisystem> memstat.sh -c showmodulefilter e1000e Storage: minisystem>
-
Show information about pages and call stacks used by the filtering module.
Storage: minisystem> memstat.sh -c showmoduletrace page[ffffea007efe6e00], pfn[33290680], size[32768], module[e1000e] [<ffffffff81170758>] __alloc_page_frag+0x88/0x180 [<ffffffff815191df>] __netdev_alloc_skb+0x6f/0x110 [<ffffffffa0c479eb>] e1000_clean_rx_irq+0x35b/0x440 [e1000e]page[ffffea0005e9ee00], pfn[1550264], size[32768], module[e1000e] [<ffffffff81170758>] __alloc_page_frag+0x88/0x180 [<ffffffff815191df>] __netdev_alloc_skb+0x6f/0x110 [<ffffffffa0c479eb>] e1000_clean_rx_irq+0x35b/0x440 [e1000e] Storage: minisystem>
