From 72e60ddf1b8c7b41fb812b9659513bb01a3bcd20 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Hyman=20Huang=28=E9=BB=84=E5=8B=87=29?= Date: Sun, 20 Feb 2022 21:28:14 +0800 Subject: [PATCH] virsh: Add mode option to domdirtyrate-calc virsh api MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Extend domdirtyrate-calc virsh api with mode option, either of these three options "page-sampling,dirty-bitmap,dirty-ring" can be specified when calculating dirty page rate. Signed-off-by: Hyman Huang(黄勇) Signed-off-by: Michal Privoznik Reviewed-by: Michal Privoznik --- docs/manpages/virsh.rst | 7 ++++-- tools/virsh-completer-domain.c | 19 +++++++++++++++ tools/virsh-completer-domain.h | 4 ++++ tools/virsh-domain.c | 42 +++++++++++++++++++++++++++++++++- tools/virsh-domain.h | 9 ++++++++ 5 files changed, 78 insertions(+), 3 deletions(-) diff --git a/docs/manpages/virsh.rst b/docs/manpages/virsh.rst index 429879d2dd..00d21a19d8 100644 --- a/docs/manpages/virsh.rst +++ b/docs/manpages/virsh.rst @@ -1717,13 +1717,16 @@ domdirtyrate-calc :: domdirtyrate-calc [--seconds ] + --mode=[page-sampling | dirty-bitmap | dirty-ring] Calculate an active domain's memory dirty rate which may be expected by user in order to decide whether it's proper to be migrated out or not. The ``seconds`` parameter can be used to calculate dirty rate in a specific time which allows 60s at most now and would be default to 1s -if missing. The calculated dirty rate information is available by calling -'domstats --dirtyrate'. +if missing. These three *page-sampling, dirty-bitmap, dirty-ring* modes +are mutually exclusive and alternative when specify calculation mode, +*page-sampling* is the default mode if missing. The calculated dirty +rate information is available by calling 'domstats --dirtyrate'. domdisplay diff --git a/tools/virsh-completer-domain.c b/tools/virsh-completer-domain.c index b4e744c1ba..321c47ef65 100644 --- a/tools/virsh-completer-domain.c +++ b/tools/virsh-completer-domain.c @@ -1150,3 +1150,22 @@ virshDomainNumatuneModeCompleter(vshControl *ctl G_GNUC_UNUSED, return ret; } + + +char ** +virshDomainDirtyRateCalcModeCompleter(vshControl *ctl G_GNUC_UNUSED, + const vshCmd *cmd G_GNUC_UNUSED, + unsigned int flags) +{ + char **ret = NULL; + size_t i; + + virCheckFlags(0, NULL); + + ret = g_new0(char *, VIRSH_DOMAIN_DIRTYRATE_CALC_MODE_LAST + 1); + + for (i = 0; i < VIRSH_DOMAIN_DIRTYRATE_CALC_MODE_LAST; i++) + ret[i] = g_strdup(virshDomainDirtyRateCalcModeTypeToString(i)); + + return ret; +} diff --git a/tools/virsh-completer-domain.h b/tools/virsh-completer-domain.h index 94bb3b5e5c..044c675842 100644 --- a/tools/virsh-completer-domain.h +++ b/tools/virsh-completer-domain.h @@ -186,3 +186,7 @@ char ** virshDomainNumatuneModeCompleter(vshControl *ctl, const vshCmd *cmd, unsigned int flags); +char ** +virshDomainDirtyRateCalcModeCompleter(vshControl *ctl, + const vshCmd *cmd, + unsigned int flags); diff --git a/tools/virsh-domain.c b/tools/virsh-domain.c index 433ea674b5..75079343f0 100644 --- a/tools/virsh-domain.c +++ b/tools/virsh-domain.c @@ -14486,14 +14486,28 @@ static const vshCmdOptDef opts_domdirtyrate_calc[] = { .help = N_("calculate memory dirty rate within specified seconds, " "the supported value range from 1 to 60, default to 1.") }, + {.name = "mode", + .type = VSH_OT_STRING, + .completer = virshDomainDirtyRateCalcModeCompleter, + .help = N_("dirty page rate calculation mode, either of these 3 options " + "'page-sampling, dirty-bitmap, dirty-ring' can be specified.") + }, {.name = NULL} }; +VIR_ENUM_IMPL(virshDomainDirtyRateCalcMode, + VIRSH_DOMAIN_DIRTYRATE_CALC_MODE_LAST, + "page-sampling", + "dirty-bitmap", + "dirty-ring"); + static bool cmdDomDirtyRateCalc(vshControl *ctl, const vshCmd *cmd) { g_autoptr(virshDomain) dom = NULL; int seconds = 1; /* the default value is 1 */ + const char *modestr = NULL; + unsigned int flags = 0; if (!(dom = virshCommandOptDomain(ctl, cmd, NULL))) return false; @@ -14501,7 +14515,33 @@ cmdDomDirtyRateCalc(vshControl *ctl, const vshCmd *cmd) if (vshCommandOptInt(ctl, cmd, "seconds", &seconds) < 0) return false; - if (virDomainStartDirtyRateCalc(dom, seconds, 0) < 0) + if (vshCommandOptStringReq(ctl, cmd, "mode", &modestr) < 0) + return false; + + if (modestr) { + int mode = virshDomainDirtyRateCalcModeTypeFromString(modestr); + + if (mode < 0) { + vshError(ctl, _("Unknown calculation mode '%s'"), modestr); + return false; + } + + switch ((virshDomainDirtyRateCalcMode) mode) { + case VIRSH_DOMAIN_DIRTYRATE_CALC_MODE_PAGE_SAMPLING: + flags |= VIR_DOMAIN_DIRTYRATE_MODE_PAGE_SAMPLING; + break; + case VIRSH_DOMAIN_DIRTYRATE_CALC_MODE_DIRTY_BITMAP: + flags |= VIR_DOMAIN_DIRTYRATE_MODE_DIRTY_BITMAP; + break; + case VIRSH_DOMAIN_DIRTYRATE_CALC_MODE_DIRTY_RING: + flags |= VIR_DOMAIN_DIRTYRATE_MODE_DIRTY_RING; + break; + case VIRSH_DOMAIN_DIRTYRATE_CALC_MODE_LAST: + break; + } + } + + if (virDomainStartDirtyRateCalc(dom, seconds, flags) < 0) return false; vshPrintExtra(ctl, _("Start to calculate domain's memory " diff --git a/tools/virsh-domain.h b/tools/virsh-domain.h index cf5ce28825..6a94438627 100644 --- a/tools/virsh-domain.h +++ b/tools/virsh-domain.h @@ -46,6 +46,15 @@ typedef enum { VIR_ENUM_DECL(virshDomainInterfaceSourceMode); +typedef enum { + VIRSH_DOMAIN_DIRTYRATE_CALC_MODE_PAGE_SAMPLING, + VIRSH_DOMAIN_DIRTYRATE_CALC_MODE_DIRTY_BITMAP, + VIRSH_DOMAIN_DIRTYRATE_CALC_MODE_DIRTY_RING, + VIRSH_DOMAIN_DIRTYRATE_CALC_MODE_LAST, +} virshDomainDirtyRateCalcMode; + +VIR_ENUM_DECL(virshDomainDirtyRateCalcMode); + extern const vshCmdDef domManagementCmds[]; VIR_ENUM_DECL(virshDomainProcessSignal);